diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2010-01-29 20:39:02 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-21 09:37:30 -0700 |
| commit | 3142788b7967ccfd2f1813ee9e11aeb1e1cf7de2 (patch) | |
| tree | 292a6e3a21e237789c91a8d0ccd021321990a265 /drivers | |
| parent | 190e8370b8033f746db5289e9324174564a6f5a7 (diff) | |
| download | linux-3142788b7967ccfd2f1813ee9e11aeb1e1cf7de2.tar.bz2 | |
drivers/base: Convert dev->sem to mutex
The semaphore is semantically a mutex. Convert it to a real mutex and
fix up a few places where code was relying on semaphore.h to be included
by device.h, as well as the users of the trylock function, as that value
is now reversed.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/base/core.c | 3 | ||||
| -rw-r--r-- | drivers/net/mlx4/mlx4.h | 1 | ||||
| -rw-r--r-- | drivers/staging/comedi/drivers/quatech_daqp_cs.c | 1 | ||||
| -rw-r--r-- | drivers/usb/core/usb.c | 2 |
4 files changed, 4 insertions, 3 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index e11c8c3e7416..cf507a7d200c 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -20,7 +20,6 @@ #include <linux/notifier.h> #include <linux/genhd.h> #include <linux/kallsyms.h> -#include <linux/semaphore.h> #include <linux/mutex.h> #include <linux/async.h> @@ -559,7 +558,7 @@ void device_initialize(struct device *dev) dev->kobj.kset = devices_kset; kobject_init(&dev->kobj, &device_ktype); INIT_LIST_HEAD(&dev->dma_pools); - init_MUTEX(&dev->sem); + mutex_init(&dev->mutex); spin_lock_init(&dev->devres_lock); INIT_LIST_HEAD(&dev->devres_head); device_pm_init(dev); diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index bc72d6e4919b..13343e884999 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -40,6 +40,7 @@ #include <linux/mutex.h> #include <linux/radix-tree.h> #include <linux/timer.h> +#include <linux/semaphore.h> #include <linux/workqueue.h> #include <linux/mlx4/device.h> diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c index 1786db2f3378..8b274b708259 100644 --- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c +++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c @@ -48,6 +48,7 @@ Devices: [Quatech] DAQP-208 (daqp), DAQP-308 */ #include "../comedidev.h" +#include <linux/semaphore.h> #include <pcmcia/cs_types.h> #include <pcmcia/cs.h> diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 397b678f1c47..5ae14f6c1e7a 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -573,7 +573,7 @@ int usb_lock_device_for_reset(struct usb_device *udev, iface->condition == USB_INTERFACE_UNBOUND)) return -EINTR; - while (usb_trylock_device(udev) != 0) { + while (!usb_trylock_device(udev)) { /* If we can't acquire the lock after waiting one second, * we're probably deadlocked */ |