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| author | Al Viro <viro@zeniv.linux.org.uk> | 2013-05-05 21:52:57 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-05-07 02:16:21 -0400 |
| commit | db2a144bedd58b3dcf19950c2f476c58c9f39d18 (patch) | |
| tree | 931f1b5a8e6bafe388b317bce02a9fd9af309d38 /drivers/s390/block | |
| parent | a8ca889ed9585894d53fd8919d80cbe8baff09e7 (diff) | |
| download | linux-3.10-db2a144bedd58b3dcf19950c2f476c58c9f39d18.tar.gz linux-3.10-db2a144bedd58b3dcf19950c2f476c58c9f39d18.tar.bz2 linux-3.10-db2a144bedd58b3dcf19950c2f476c58c9f39d18.zip | |
block_device_operations->release() should return void
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 <viro@zeniv.linux.org.uk>
Diffstat (limited to 'drivers/s390/block')
| -rw-r--r-- | drivers/s390/block/dasd.c | 18 | ||||
| -rw-r--r-- | drivers/s390/block/dcssblk.c | 12 | ||||
| -rw-r--r-- | drivers/s390/block/scm_blk.c | 3 |
3 files changed, 12 insertions, 21 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 82758cbb220..4361d9772c4 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -2997,18 +2997,14 @@ unlock: return rc; } -static int dasd_release(struct gendisk *disk, fmode_t mode) +static void dasd_release(struct gendisk *disk, fmode_t mode) { - struct dasd_device *base; - - base = dasd_device_from_gendisk(disk); - if (!base) - return -ENODEV; - - atomic_dec(&base->block->open_count); - module_put(base->discipline->owner); - dasd_put_device(base); - return 0; + struct dasd_device *base = dasd_device_from_gendisk(disk); + if (base) { + atomic_dec(&base->block->open_count); + module_put(base->discipline->owner); + dasd_put_device(base); + } } /* diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index b6ad0de0793..07ba32b07fb 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -26,7 +26,7 @@ #define DCSS_BUS_ID_SIZE 20 static int dcssblk_open(struct block_device *bdev, fmode_t mode); -static int dcssblk_release(struct gendisk *disk, fmode_t mode); +static void dcssblk_release(struct gendisk *disk, fmode_t mode); static void dcssblk_make_request(struct request_queue *q, struct bio *bio); static int dcssblk_direct_access(struct block_device *bdev, sector_t secnum, void **kaddr, unsigned long *pfn); @@ -781,16 +781,15 @@ out: return rc; } -static int +static void dcssblk_release(struct gendisk *disk, fmode_t mode) { struct dcssblk_dev_info *dev_info = disk->private_data; struct segment_info *entry; - int rc; if (!dev_info) { - rc = -ENODEV; - goto out; + WARN_ON(1); + return; } down_write(&dcssblk_devices_sem); if (atomic_dec_and_test(&dev_info->use_count) @@ -803,9 +802,6 @@ dcssblk_release(struct gendisk *disk, fmode_t mode) dev_info->save_pending = 0; } up_write(&dcssblk_devices_sem); - rc = 0; -out: - return rc; } static void diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c index b303cab76a7..5d73e6e49af 100644 --- a/drivers/s390/block/scm_blk.c +++ b/drivers/s390/block/scm_blk.c @@ -123,10 +123,9 @@ static int scm_open(struct block_device *blkdev, fmode_t mode) return scm_get_ref(); } -static int scm_release(struct gendisk *gendisk, fmode_t mode) +static void scm_release(struct gendisk *gendisk, fmode_t mode) { scm_put_ref(); - return 0; } static const struct block_device_operations scm_blk_devops = { |