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authorDave Airlie <airlied@redhat.com>2018-10-19 13:51:55 +1000
committerDave Airlie <airlied@redhat.com>2018-10-19 13:52:03 +1000
commitf8e6e1b6f0ae3bb91cdcd08213d36a0ce6e98535 (patch)
tree44c5aed65fb2e435e514b900822cd752fad28424 /drivers/gpu/drm/drm_crtc.c
parent35a7f35ad1b150ddf59a41dcac7b2fa32982be0e (diff)
parent9068e02f58740778d8270840657f1e250a2cc60f (diff)
downloadlinux-f8e6e1b6f0ae3bb91cdcd08213d36a0ce6e98535.tar.bz2
Merge tag 'drm-misc-fixes-2018-10-18' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v4.19: - Fix use of freed memory in drm_mode_setcrtc. - Reject pixel format changing requests in fb helper. - Add 6 bpc quirk for HP Pavilion 15-n233sl - Fix VSDB yCBCr420 Deep Color mode bit definitions Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/647fe5d0-4ec5-57cc-9f23-a4836b29e278@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
-rw-r--r--drivers/gpu/drm/drm_crtc.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index bae43938c8f6..9cbe8f5c9aca 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -567,9 +567,9 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
struct drm_mode_crtc *crtc_req = data;
struct drm_crtc *crtc;
struct drm_plane *plane;
- struct drm_connector **connector_set = NULL, *connector;
- struct drm_framebuffer *fb = NULL;
- struct drm_display_mode *mode = NULL;
+ struct drm_connector **connector_set, *connector;
+ struct drm_framebuffer *fb;
+ struct drm_display_mode *mode;
struct drm_mode_set set;
uint32_t __user *set_connectors_ptr;
struct drm_modeset_acquire_ctx ctx;
@@ -598,6 +598,10 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
mutex_lock(&crtc->dev->mode_config.mutex);
drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
retry:
+ connector_set = NULL;
+ fb = NULL;
+ mode = NULL;
+
ret = drm_modeset_lock_all_ctx(crtc->dev, &ctx);
if (ret)
goto out;