diff options
| author | Arjan van de Ven <arjan@infradead.org> | 2006-01-11 15:55:29 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-03-20 14:49:55 -0800 |
| commit | 4186ecf8ad16dd05759a09594de6a87e48759ba6 (patch) | |
| tree | 3ee5292d9f4a36e3eb359b586289ec972bcbaf39 /drivers/usb/media/w9968cf.h | |
| parent | 35cce732d9d4d9af6b4ad4d26d8f8c0eddb573a2 (diff) | |
[PATCH] USB: convert a bunch of USB semaphores to mutexes
the patch below converts a bunch of semaphores-used-as-mutex in the USB
code to mutexes
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/media/w9968cf.h')
| -rw-r--r-- | drivers/usb/media/w9968cf.h | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/drivers/usb/media/w9968cf.h b/drivers/usb/media/w9968cf.h index 47a6ff79417..a87be719a28 100644 --- a/drivers/usb/media/w9968cf.h +++ b/drivers/usb/media/w9968cf.h @@ -32,7 +32,7 @@ #include <linux/param.h> #include <linux/types.h> #include <linux/rwsem.h> -#include <asm/semaphore.h> +#include <linux/mutex.h> #include <media/ovcamchip.h> @@ -194,14 +194,6 @@ enum w9968cf_vpp_flag { VPP_UYVY_TO_RGBX = 0x08, }; -static struct w9968cf_vpp_t* w9968cf_vpp; -static DECLARE_WAIT_QUEUE_HEAD(w9968cf_vppmod_wait); - -static LIST_HEAD(w9968cf_dev_list); /* head of V4L registered cameras list */ -static DECLARE_MUTEX(w9968cf_devlist_sem); /* semaphore for list traversal */ - -static DECLARE_RWSEM(w9968cf_disconnect); /* prevent races with open() */ - /* Main device driver structure */ struct w9968cf_device { struct device dev; /* device structure */ @@ -277,8 +269,8 @@ struct w9968cf_device { struct i2c_client* sensor_client; /* Locks */ - struct semaphore dev_sem, /* for probe, disconnect,open and close */ - fileop_sem; /* for read and ioctl */ + struct mutex dev_mutex, /* for probe, disconnect,open and close */ + fileop_mutex; /* for read and ioctl */ spinlock_t urb_lock, /* for submit_urb() and unlink_urb() */ flist_lock; /* for requested frame list accesses */ wait_queue_head_t open, wait_queue; |