From 243dd05d39aa14fac2ffde75cc66dee3270896f8 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Sat, 6 May 2017 01:10:06 -0700 Subject: mtk-vcodec: Use designated initializers The randstruct plugin requires designated initializers for structures that are entirely function pointers. Cc: Wu-Cheng Li Cc: Tiffany Lin Cc: Hans Verkuil Cc: Mauro Carvalho Chehab Signed-off-by: Kees Cook --- drivers/media/platform/mtk-vcodec/vdec/vdec_h264_if.c | 8 ++++---- drivers/media/platform/mtk-vcodec/vdec/vdec_vp8_if.c | 8 ++++---- drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c | 8 ++++---- 3 files changed, 12 insertions(+), 12 deletions(-) (limited to 'drivers/media') diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_if.c b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_if.c index 57a842ff3097..b7731b18ecae 100644 --- a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_if.c +++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_if.c @@ -493,10 +493,10 @@ static int vdec_h264_get_param(unsigned long h_vdec, } static struct vdec_common_if vdec_h264_if = { - vdec_h264_init, - vdec_h264_decode, - vdec_h264_get_param, - vdec_h264_deinit, + .init = vdec_h264_init, + .decode = vdec_h264_decode, + .get_param = vdec_h264_get_param, + .deinit = vdec_h264_deinit, }; struct vdec_common_if *get_h264_dec_comm_if(void); diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_vp8_if.c b/drivers/media/platform/mtk-vcodec/vdec/vdec_vp8_if.c index 6e7a62ae0842..b9fad6a48879 100644 --- a/drivers/media/platform/mtk-vcodec/vdec/vdec_vp8_if.c +++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_vp8_if.c @@ -620,10 +620,10 @@ static void vdec_vp8_deinit(unsigned long h_vdec) } static struct vdec_common_if vdec_vp8_if = { - vdec_vp8_init, - vdec_vp8_decode, - vdec_vp8_get_param, - vdec_vp8_deinit, + .init = vdec_vp8_init, + .decode = vdec_vp8_decode, + .get_param = vdec_vp8_get_param, + .deinit = vdec_vp8_deinit, }; struct vdec_common_if *get_vp8_dec_comm_if(void); diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c b/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c index 5539b1853f16..1daee1207469 100644 --- a/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c +++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c @@ -979,10 +979,10 @@ static int vdec_vp9_get_param(unsigned long h_vdec, } static struct vdec_common_if vdec_vp9_if = { - vdec_vp9_init, - vdec_vp9_decode, - vdec_vp9_get_param, - vdec_vp9_deinit, + .init = vdec_vp9_init, + .decode = vdec_vp9_decode, + .get_param = vdec_vp9_get_param, + .deinit = vdec_vp9_deinit, }; struct vdec_common_if *get_vp9_dec_comm_if(void); -- cgit v1.2.3 From ca33784ba4949856a94a545c91429aae5c8b658d Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 19 May 2017 14:45:15 -0300 Subject: [media] rainshadow-cec: ensure exit_loop is intialized exit_loop is not being initialized, so it contains garbage. Ensure it is initialized to false. Detected by CoverityScan, CID#1436409 ("Uninitialized scalar variable") Fixes: ea6a69defd3311 ("[media] rainshadow-cec: avoid -Wmaybe-uninitialized warning") Signed-off-by: Colin Ian King Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/rainshadow-cec/rainshadow-cec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/media') diff --git a/drivers/media/usb/rainshadow-cec/rainshadow-cec.c b/drivers/media/usb/rainshadow-cec/rainshadow-cec.c index 541ca543f71f..71bd68548c9c 100644 --- a/drivers/media/usb/rainshadow-cec/rainshadow-cec.c +++ b/drivers/media/usb/rainshadow-cec/rainshadow-cec.c @@ -119,7 +119,7 @@ static void rain_irq_work_handler(struct work_struct *work) while (true) { unsigned long flags; - bool exit_loop; + bool exit_loop = false; char data; spin_lock_irqsave(&rain->buf_lock, flags); -- cgit v1.2.3 From 9177e51d1434076a91f9bfb693deae8b955d6d57 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 28 May 2017 05:48:37 -0300 Subject: [media] cec: select CEC_CORE instead of depend on it The CEC framework is used by both drm and media. That makes it tricky to get the dependencies right. This patch moves the CEC_CORE and MEDIA_CEC_NOTIFIER config options out of the media menu and instead drivers that want to use CEC should select CEC_CORE and MEDIA_CEC_NOTIFIER (if needed). Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/Kconfig | 6 ++++++ drivers/media/Makefile | 4 ++-- drivers/media/cec/Kconfig | 8 -------- drivers/media/i2c/Kconfig | 9 ++++++--- drivers/media/platform/Kconfig | 6 ++++-- drivers/media/platform/vivid/Kconfig | 3 ++- drivers/media/usb/pulse8-cec/Kconfig | 3 ++- drivers/media/usb/rainshadow-cec/Kconfig | 3 ++- 8 files changed, 24 insertions(+), 18 deletions(-) (limited to 'drivers/media') diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig index b72edd27f880..9ec634e2f2ba 100644 --- a/drivers/media/Kconfig +++ b/drivers/media/Kconfig @@ -2,6 +2,12 @@ # Multimedia device configuration # +config CEC_CORE + tristate + +config MEDIA_CEC_NOTIFIER + bool + menuconfig MEDIA_SUPPORT tristate "Multimedia support" depends on HAS_IOMEM diff --git a/drivers/media/Makefile b/drivers/media/Makefile index 523fea3648ad..044503aa8801 100644 --- a/drivers/media/Makefile +++ b/drivers/media/Makefile @@ -4,8 +4,6 @@ media-objs := media-device.o media-devnode.o media-entity.o -obj-$(CONFIG_CEC_CORE) += cec/ - # # I2C drivers should come before other drivers, otherwise they'll fail # when compiled as builtin drivers @@ -26,6 +24,8 @@ obj-$(CONFIG_DVB_CORE) += dvb-core/ # There are both core and drivers at RC subtree - merge before drivers obj-y += rc/ +obj-$(CONFIG_CEC_CORE) += cec/ + # # Finally, merge the drivers that require the core # diff --git a/drivers/media/cec/Kconfig b/drivers/media/cec/Kconfig index f944d93e3167..b7d876b384f6 100644 --- a/drivers/media/cec/Kconfig +++ b/drivers/media/cec/Kconfig @@ -1,11 +1,3 @@ -config CEC_CORE - tristate - depends on MEDIA_CEC_SUPPORT - default y - -config MEDIA_CEC_NOTIFIER - bool - config MEDIA_CEC_RC bool "HDMI CEC RC integration" depends on CEC_CORE && RC_CORE diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index fd181c99ce11..aaa9471c7d11 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -220,7 +220,8 @@ config VIDEO_ADV7604 config VIDEO_ADV7604_CEC bool "Enable Analog Devices ADV7604 CEC support" - depends on VIDEO_ADV7604 && CEC_CORE + depends on VIDEO_ADV7604 + select CEC_CORE ---help--- When selected the adv7604 will support the optional HDMI CEC feature. @@ -240,7 +241,8 @@ config VIDEO_ADV7842 config VIDEO_ADV7842_CEC bool "Enable Analog Devices ADV7842 CEC support" - depends on VIDEO_ADV7842 && CEC_CORE + depends on VIDEO_ADV7842 + select CEC_CORE ---help--- When selected the adv7842 will support the optional HDMI CEC feature. @@ -478,7 +480,8 @@ config VIDEO_ADV7511 config VIDEO_ADV7511_CEC bool "Enable Analog Devices ADV7511 CEC support" - depends on VIDEO_ADV7511 && CEC_CORE + depends on VIDEO_ADV7511 + select CEC_CORE ---help--- When selected the adv7511 will support the optional HDMI CEC feature. diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index ac026ee1ca07..017419bef9b1 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -501,7 +501,8 @@ if CEC_PLATFORM_DRIVERS config VIDEO_SAMSUNG_S5P_CEC tristate "Samsung S5P CEC driver" - depends on CEC_CORE && (PLAT_S5P || ARCH_EXYNOS || COMPILE_TEST) + depends on PLAT_S5P || ARCH_EXYNOS || COMPILE_TEST + select CEC_CORE select MEDIA_CEC_NOTIFIER ---help--- This is a driver for Samsung S5P HDMI CEC interface. It uses the @@ -511,7 +512,8 @@ config VIDEO_SAMSUNG_S5P_CEC config VIDEO_STI_HDMI_CEC tristate "STMicroelectronics STiH4xx HDMI CEC driver" - depends on CEC_CORE && (ARCH_STI || COMPILE_TEST) + depends on ARCH_STI || COMPILE_TEST + select CEC_CORE select MEDIA_CEC_NOTIFIER ---help--- This is a driver for STIH4xx HDMI CEC interface. It uses the diff --git a/drivers/media/platform/vivid/Kconfig b/drivers/media/platform/vivid/Kconfig index b36ac19dc6e4..154de92dd809 100644 --- a/drivers/media/platform/vivid/Kconfig +++ b/drivers/media/platform/vivid/Kconfig @@ -26,7 +26,8 @@ config VIDEO_VIVID config VIDEO_VIVID_CEC bool "Enable CEC emulation support" - depends on VIDEO_VIVID && CEC_CORE + depends on VIDEO_VIVID + select CEC_CORE ---help--- When selected the vivid module will emulate the optional HDMI CEC feature. diff --git a/drivers/media/usb/pulse8-cec/Kconfig b/drivers/media/usb/pulse8-cec/Kconfig index 8937f3986a01..18ead44824ba 100644 --- a/drivers/media/usb/pulse8-cec/Kconfig +++ b/drivers/media/usb/pulse8-cec/Kconfig @@ -1,6 +1,7 @@ config USB_PULSE8_CEC tristate "Pulse Eight HDMI CEC" - depends on USB_ACM && CEC_CORE + depends on USB_ACM + select CEC_CORE select SERIO select SERIO_SERPORT ---help--- diff --git a/drivers/media/usb/rainshadow-cec/Kconfig b/drivers/media/usb/rainshadow-cec/Kconfig index 3eb86607efb8..030ef01b1ff0 100644 --- a/drivers/media/usb/rainshadow-cec/Kconfig +++ b/drivers/media/usb/rainshadow-cec/Kconfig @@ -1,6 +1,7 @@ config USB_RAINSHADOW_CEC tristate "RainShadow Tech HDMI CEC" - depends on USB_ACM && CEC_CORE + depends on USB_ACM + select CEC_CORE select SERIO select SERIO_SERPORT ---help--- -- cgit v1.2.3 From e94c32818d865b620c9bbd2656ab3199259ef9ec Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 28 May 2017 05:58:04 -0300 Subject: [media] cec: rename MEDIA_CEC_NOTIFIER to CEC_NOTIFIER This config option is strictly speaking independent of the media subsystem since it can be used by drm as well. Besides, it looks odd when drivers select CEC_CORE and MEDIA_CEC_NOTIFIER, that's inconsistent naming. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/Kconfig | 2 +- drivers/media/cec/Makefile | 2 +- drivers/media/cec/cec-core.c | 4 ++-- drivers/media/platform/Kconfig | 4 ++-- include/media/cec-notifier.h | 2 +- include/media/cec.h | 4 ++-- 6 files changed, 9 insertions(+), 9 deletions(-) (limited to 'drivers/media') diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig index 9ec634e2f2ba..55d9c2b82b7e 100644 --- a/drivers/media/Kconfig +++ b/drivers/media/Kconfig @@ -5,7 +5,7 @@ config CEC_CORE tristate -config MEDIA_CEC_NOTIFIER +config CEC_NOTIFIER bool menuconfig MEDIA_SUPPORT diff --git a/drivers/media/cec/Makefile b/drivers/media/cec/Makefile index 402a6c62a3e8..eaf408e64669 100644 --- a/drivers/media/cec/Makefile +++ b/drivers/media/cec/Makefile @@ -1,6 +1,6 @@ cec-objs := cec-core.o cec-adap.o cec-api.o cec-edid.o -ifeq ($(CONFIG_MEDIA_CEC_NOTIFIER),y) +ifeq ($(CONFIG_CEC_NOTIFIER),y) cec-objs += cec-notifier.o endif diff --git a/drivers/media/cec/cec-core.c b/drivers/media/cec/cec-core.c index f9ebff90f8eb..feeb4c5afa69 100644 --- a/drivers/media/cec/cec-core.c +++ b/drivers/media/cec/cec-core.c @@ -187,7 +187,7 @@ static void cec_devnode_unregister(struct cec_devnode *devnode) put_device(&devnode->dev); } -#ifdef CONFIG_MEDIA_CEC_NOTIFIER +#ifdef CONFIG_CEC_NOTIFIER static void cec_cec_notify(struct cec_adapter *adap, u16 pa) { cec_s_phys_addr(adap, pa, false); @@ -355,7 +355,7 @@ void cec_unregister_adapter(struct cec_adapter *adap) adap->rc = NULL; #endif debugfs_remove_recursive(adap->cec_dir); -#ifdef CONFIG_MEDIA_CEC_NOTIFIER +#ifdef CONFIG_CEC_NOTIFIER if (adap->notifier) cec_notifier_unregister(adap->notifier); #endif diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index 017419bef9b1..041cb80a26b1 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -503,7 +503,7 @@ config VIDEO_SAMSUNG_S5P_CEC tristate "Samsung S5P CEC driver" depends on PLAT_S5P || ARCH_EXYNOS || COMPILE_TEST select CEC_CORE - select MEDIA_CEC_NOTIFIER + select CEC_NOTIFIER ---help--- This is a driver for Samsung S5P HDMI CEC interface. It uses the generic CEC framework interface. @@ -514,7 +514,7 @@ config VIDEO_STI_HDMI_CEC tristate "STMicroelectronics STiH4xx HDMI CEC driver" depends on ARCH_STI || COMPILE_TEST select CEC_CORE - select MEDIA_CEC_NOTIFIER + select CEC_NOTIFIER ---help--- This is a driver for STIH4xx HDMI CEC interface. It uses the generic CEC framework interface. diff --git a/include/media/cec-notifier.h b/include/media/cec-notifier.h index eb50ce54b759..413335c8cb52 100644 --- a/include/media/cec-notifier.h +++ b/include/media/cec-notifier.h @@ -29,7 +29,7 @@ struct edid; struct cec_adapter; struct cec_notifier; -#ifdef CONFIG_MEDIA_CEC_NOTIFIER +#if IS_REACHABLE(CONFIG_CEC_CORE) && IS_ENABLED(CONFIG_CEC_NOTIFIER) /** * cec_notifier_get - find or create a new cec_notifier for the given device. diff --git a/include/media/cec.h b/include/media/cec.h index b8eb895731d5..bfa88d4d67e1 100644 --- a/include/media/cec.h +++ b/include/media/cec.h @@ -173,7 +173,7 @@ struct cec_adapter { bool passthrough; struct cec_log_addrs log_addrs; -#ifdef CONFIG_MEDIA_CEC_NOTIFIER +#ifdef CONFIG_CEC_NOTIFIER struct cec_notifier *notifier; #endif @@ -300,7 +300,7 @@ u16 cec_phys_addr_for_input(u16 phys_addr, u8 input); */ int cec_phys_addr_validate(u16 phys_addr, u16 *parent, u16 *port); -#ifdef CONFIG_MEDIA_CEC_NOTIFIER +#ifdef CONFIG_CEC_NOTIFIER void cec_register_cec_notifier(struct cec_adapter *adap, struct cec_notifier *notifier); #endif -- cgit v1.2.3 From 20249f84238e006ef7b726d3211a70de7454d045 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 28 May 2017 05:52:16 -0300 Subject: [media] cec: drop MEDIA_CEC_DEBUG Just depend on DEBUG_FS, no need to invent a new kernel config. Especially since CEC can be enabled by drm without enabling MEDIA_SUPPORT. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/cec/Kconfig | 6 ------ drivers/media/cec/cec-adap.c | 2 +- drivers/media/cec/cec-core.c | 4 ++-- 3 files changed, 3 insertions(+), 9 deletions(-) (limited to 'drivers/media') diff --git a/drivers/media/cec/Kconfig b/drivers/media/cec/Kconfig index b7d876b384f6..4e25a950ae6f 100644 --- a/drivers/media/cec/Kconfig +++ b/drivers/media/cec/Kconfig @@ -3,9 +3,3 @@ config MEDIA_CEC_RC depends on CEC_CORE && RC_CORE ---help--- Pass on CEC remote control messages to the RC framework. - -config MEDIA_CEC_DEBUG - bool "HDMI CEC debugfs interface" - depends on CEC_CORE && DEBUG_FS - ---help--- - Turns on the DebugFS interface for CEC devices. diff --git a/drivers/media/cec/cec-adap.c b/drivers/media/cec/cec-adap.c index f5fe01c9da8a..9dfc79800c71 100644 --- a/drivers/media/cec/cec-adap.c +++ b/drivers/media/cec/cec-adap.c @@ -1864,7 +1864,7 @@ void cec_monitor_all_cnt_dec(struct cec_adapter *adap) WARN_ON(call_op(adap, adap_monitor_all_enable, 0)); } -#ifdef CONFIG_MEDIA_CEC_DEBUG +#ifdef CONFIG_DEBUG_FS /* * Log the current state of the CEC adapter. * Very useful for debugging. diff --git a/drivers/media/cec/cec-core.c b/drivers/media/cec/cec-core.c index feeb4c5afa69..2f87748ba4fc 100644 --- a/drivers/media/cec/cec-core.c +++ b/drivers/media/cec/cec-core.c @@ -323,7 +323,7 @@ int cec_register_adapter(struct cec_adapter *adap, } dev_set_drvdata(&adap->devnode.dev, adap); -#ifdef CONFIG_MEDIA_CEC_DEBUG +#ifdef CONFIG_DEBUG_FS if (!top_cec_dir) return 0; @@ -395,7 +395,7 @@ static int __init cec_devnode_init(void) return ret; } -#ifdef CONFIG_MEDIA_CEC_DEBUG +#ifdef CONFIG_DEBUG_FS top_cec_dir = debugfs_create_dir("cec", NULL); if (IS_ERR_OR_NULL(top_cec_dir)) { pr_warn("cec: Failed to create debugfs cec dir\n"); -- cgit v1.2.3 From 963761a0b2e85663ee4a5630f72930885a06598a Mon Sep 17 00:00:00 2001 From: Sean Young Date: Wed, 24 May 2017 06:24:51 -0300 Subject: [media] rc-core: race condition during ir_raw_event_register() A rc device can call ir_raw_event_handle() after rc_allocate_device(), but before rc_register_device() has completed. This is racey because rcdev->raw is set before rcdev->raw->thread has a valid value. Cc: stable@kernel.org Reported-by: kbuild test robot Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/rc-ir-raw.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'drivers/media') diff --git a/drivers/media/rc/rc-ir-raw.c b/drivers/media/rc/rc-ir-raw.c index 90f66dc7c0d7..a2fc1a1d58b0 100644 --- a/drivers/media/rc/rc-ir-raw.c +++ b/drivers/media/rc/rc-ir-raw.c @@ -211,7 +211,7 @@ EXPORT_SYMBOL_GPL(ir_raw_event_set_idle); */ void ir_raw_event_handle(struct rc_dev *dev) { - if (!dev->raw) + if (!dev->raw || !dev->raw->thread) return; wake_up_process(dev->raw->thread); @@ -490,6 +490,7 @@ int ir_raw_event_register(struct rc_dev *dev) { int rc; struct ir_raw_handler *handler; + struct task_struct *thread; if (!dev) return -EINVAL; @@ -507,13 +508,15 @@ int ir_raw_event_register(struct rc_dev *dev) * because the event is coming from userspace */ if (dev->driver_type != RC_DRIVER_IR_RAW_TX) { - dev->raw->thread = kthread_run(ir_raw_event_thread, dev->raw, - "rc%u", dev->minor); + thread = kthread_run(ir_raw_event_thread, dev->raw, "rc%u", + dev->minor); - if (IS_ERR(dev->raw->thread)) { - rc = PTR_ERR(dev->raw->thread); + if (IS_ERR(thread)) { + rc = PTR_ERR(thread); goto out; } + + dev->raw->thread = thread; } mutex_lock(&ir_raw_handler_lock); -- cgit v1.2.3 From 4b0755e90ae03ba40174842af6fa810355960fbc Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Thu, 4 May 2017 12:20:17 -0300 Subject: [media] tc358743: fix register i2c_rd/wr function fix The below mentioned fix contains a small but severe bug, fix it to make the driver work again. Fixes: 3538aa6ecfb2 ("[media] tc358743: fix register i2c_rd/wr functions") Cc: Hans Verkuil Cc: Mauro Carvalho Chehab Signed-off-by: Philipp Zabel Acked-by: Arnd Bergmann Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/tc358743.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/media') diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c index acef4eca269f..3251cba89e8f 100644 --- a/drivers/media/i2c/tc358743.c +++ b/drivers/media/i2c/tc358743.c @@ -223,7 +223,7 @@ static void i2c_wr8(struct v4l2_subdev *sd, u16 reg, u8 val) static void i2c_wr8_and_or(struct v4l2_subdev *sd, u16 reg, u8 mask, u8 val) { - i2c_wrreg(sd, reg, (i2c_rdreg(sd, reg, 2) & mask) | val, 2); + i2c_wrreg(sd, reg, (i2c_rdreg(sd, reg, 1) & mask) | val, 1); } static u16 i2c_rd16(struct v4l2_subdev *sd, u16 reg) -- cgit v1.2.3 From e0f2e5eb14668dc798942ff5f4241d9bd17f9655 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 25 Apr 2017 00:12:46 -0300 Subject: [media] rainshadow-cec: Fix missing spin_lock_init() The driver allocates the spinlock but not initialize it. Use spin_lock_init() on it to initialize it correctly. This is detected by Coccinelle semantic patch. Fixes: 0f314f6c2e77 ("[media] rainshadow-cec: new RainShadow Tech HDMI CEC driver") Signed-off-by: Wei Yongjun Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/rainshadow-cec/rainshadow-cec.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/media') diff --git a/drivers/media/usb/rainshadow-cec/rainshadow-cec.c b/drivers/media/usb/rainshadow-cec/rainshadow-cec.c index 71bd68548c9c..4126552c9055 100644 --- a/drivers/media/usb/rainshadow-cec/rainshadow-cec.c +++ b/drivers/media/usb/rainshadow-cec/rainshadow-cec.c @@ -336,6 +336,7 @@ static int rain_connect(struct serio *serio, struct serio_driver *drv) serio_set_drvdata(serio, rain); INIT_WORK(&rain->work, rain_irq_work_handler); mutex_init(&rain->write_lock); + spin_lock_init(&rain->buf_lock); err = serio_open(serio, drv); if (err) -- cgit v1.2.3 From 5ebb6dd36c9f5fb37b1077b393c254d70a14cb46 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Fri, 28 Apr 2017 01:51:40 -0300 Subject: [media] vb2: Fix an off by one error in 'vb2_plane_vaddr' We should ensure that 'plane_no' is '< vb->num_planes' as done in 'vb2_plane_cookie' just a few lines below. Fixes: e23ccc0ad925 ("[media] v4l: add videobuf2 Video for Linux 2 driver framework") Cc: stable@vger.kernel.org Signed-off-by: Christophe JAILLET Reviewed-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/v4l2-core/videobuf2-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/media') diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c index 94afbbf92807..c0175ea7e7ad 100644 --- a/drivers/media/v4l2-core/videobuf2-core.c +++ b/drivers/media/v4l2-core/videobuf2-core.c @@ -868,7 +868,7 @@ EXPORT_SYMBOL_GPL(vb2_core_create_bufs); void *vb2_plane_vaddr(struct vb2_buffer *vb, unsigned int plane_no) { - if (plane_no > vb->num_planes || !vb->planes[plane_no].mem_priv) + if (plane_no >= vb->num_planes || !vb->planes[plane_no].mem_priv) return NULL; return call_ptr_memop(vb, vaddr, vb->planes[plane_no].mem_priv); -- cgit v1.2.3 From 2302e5591a4ad2d66107c75b6be170121bff5ccd Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 21 Apr 2017 07:52:17 -0300 Subject: [media] cec: improve MEDIA_CEC_RC dependencies Changing the IS_REACHABLE() into a plain #ifdef broke the case of CONFIG_MEDIA_RC=m && CONFIG_MEDIA_CEC=y: drivers/media/cec/cec-core.o: In function `cec_unregister_adapter': cec-core.c:(.text.cec_unregister_adapter+0x18): undefined reference to `rc_unregister_device' drivers/media/cec/cec-core.o: In function `cec_delete_adapter': cec-core.c:(.text.cec_delete_adapter+0x54): undefined reference to `rc_free_device' drivers/media/cec/cec-core.o: In function `cec_register_adapter': cec-core.c:(.text.cec_register_adapter+0x94): undefined reference to `rc_register_device' cec-core.c:(.text.cec_register_adapter+0xa4): undefined reference to `rc_free_device' cec-core.c:(.text.cec_register_adapter+0x110): undefined reference to `rc_unregister_device' drivers/media/cec/cec-core.o: In function `cec_allocate_adapter': cec-core.c:(.text.cec_allocate_adapter+0x234): undefined reference to `rc_allocate_device' drivers/media/cec/cec-adap.o: In function `cec_received_msg': cec-adap.c:(.text.cec_received_msg+0x734): undefined reference to `rc_keydown' cec-adap.c:(.text.cec_received_msg+0x768): undefined reference to `rc_keyup' This adds an additional dependency to explicitly forbid this combination. Fixes: 5f2c467c54f5 ("[media] cec: add MEDIA_CEC_RC config option") Signed-off-by: Arnd Bergmann Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/cec/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/media') diff --git a/drivers/media/cec/Kconfig b/drivers/media/cec/Kconfig index 4e25a950ae6f..43428cec3a01 100644 --- a/drivers/media/cec/Kconfig +++ b/drivers/media/cec/Kconfig @@ -1,5 +1,6 @@ config MEDIA_CEC_RC bool "HDMI CEC RC integration" depends on CEC_CORE && RC_CORE + depends on CEC_CORE=m || RC_CORE=y ---help--- Pass on CEC remote control messages to the RC framework. -- cgit v1.2.3 From f8c627fbabbe9ed6ae68dcfefb7519bd153a7ac0 Mon Sep 17 00:00:00 2001 From: Sean Young Date: Tue, 16 May 2017 04:56:14 -0300 Subject: [media] sir_ir: infinite loop in interrupt handler Since this driver does no detection of hardware, it might be used with a non-sir port. Escape out if we are spinning. Reported-by: kbuild test robot Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/sir_ir.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/media') diff --git a/drivers/media/rc/sir_ir.c b/drivers/media/rc/sir_ir.c index e12ec50bf0bf..90a5f8fd5eea 100644 --- a/drivers/media/rc/sir_ir.c +++ b/drivers/media/rc/sir_ir.c @@ -183,9 +183,15 @@ static irqreturn_t sir_interrupt(int irq, void *dev_id) static unsigned long delt; unsigned long deltintr; unsigned long flags; + int counter = 0; int iir, lsr; while ((iir = inb(io + UART_IIR) & UART_IIR_ID)) { + if (++counter > 256) { + dev_err(&sir_ir_dev->dev, "Trapped in interrupt"); + break; + } + switch (iir & UART_IIR_ID) { /* FIXME toto treba preriedit */ case UART_IIR_MSI: (void)inb(io + UART_MSR); -- cgit v1.2.3 From b94aac64a4c17c5af92f9b4ba7164c5b384d5c02 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 7 Jun 2017 12:07:51 -0300 Subject: [media] cec: race fix: don't return -ENONET in cec_receive() When calling CEC_RECEIVE do not check if the adapter is configured. Typically CEC_RECEIVE is called after a select() and if that indicates that there are messages in the receive queue, then you should always be able to dequeue a message. The race condition here is that a message has been received and is queued, so select() tells userspace that a message is available. But before the application calls CEC_RECEIVE the adapter is unconfigured (e.g. the HDMI cable is removed). Now select will always report that there is a message, but calling CEC_RECEIVE will always return -ENONET because the adapter is no longer configured and so will never actually dequeue the message. There is really no need for this check, and in fact the ENONET error code was never documented for CEC_RECEIVE. This may have been a left-over of old code that was never updated. Signed-off-by: Hans Verkuil Cc: # for v4.10 and up Signed-off-by: Mauro Carvalho Chehab --- drivers/media/cec/cec-api.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'drivers/media') diff --git a/drivers/media/cec/cec-api.c b/drivers/media/cec/cec-api.c index 0860fb458757..999926f731c8 100644 --- a/drivers/media/cec/cec-api.c +++ b/drivers/media/cec/cec-api.c @@ -271,16 +271,10 @@ static long cec_receive(struct cec_adapter *adap, struct cec_fh *fh, bool block, struct cec_msg __user *parg) { struct cec_msg msg = {}; - long err = 0; + long err; if (copy_from_user(&msg, parg, sizeof(msg))) return -EFAULT; - mutex_lock(&adap->lock); - if (!adap->is_configured && fh->mode_follower < CEC_MODE_MONITOR) - err = -ENONET; - mutex_unlock(&adap->lock); - if (err) - return err; err = cec_receive_msg(fh, &msg, block); if (err) -- cgit v1.2.3