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block_device_operations->release() should return void

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The value passed is 0 in all but "it can never happen" cases (and those
only in a couple of drivers) *and* it would've been lost on the way
out anyway, even if something tried to pass something meaningful.
Just don't bother.

Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2013-05-05 21:52:57 -04:00
commit db2a144bed
37 changed files with 62 additions and 121 deletions
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5
arch/um/drivers/ubd_kern.c
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@ -87,7 +87,7 @@ static DEFINE_MUTEX(ubd_lock);
static DEFINE_MUTEX(ubd_mutex); /* replaces BKL, might not be needed */
static int ubd_open(struct block_device *bdev, fmode_t mode);
static int ubd_release(struct gendisk *disk, fmode_t mode);
static void ubd_release(struct gendisk *disk, fmode_t mode);
static int ubd_ioctl(struct block_device *bdev, fmode_t mode,
unsigned int cmd, unsigned long arg);
static int ubd_getgeo(struct block_device *bdev, struct hd_geometry *geo);
@ -1138,7 +1138,7 @@ out:
return err;
}
static int ubd_release(struct gendisk *disk, fmode_t mode)
static void ubd_release(struct gendisk *disk, fmode_t mode)
{
struct ubd *ubd_dev = disk->private_data;
@ -1146,7 +1146,6 @@ static int ubd_release(struct gendisk *disk, fmode_t mode)
if(--ubd_dev->count == 0)
ubd_close_dev(ubd_dev);
mutex_unlock(&ubd_mutex);
return 0;
}
static void cowify_bitmap(__u64 io_offset, int length, unsigned long *cow_mask,