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| author |   Mikulas Patocka <mpatocka@redhat.com> | 2015-10-22 16:46:59 -0400 |
|---|---|---|
| committer |   Mike Snitzer <snitzer@redhat.com> | 2015-10-31 19:06:02 -0400 |
| commit | 4c7da06f5a780bbf44ebd7547789e48536d0a823 (patch) | |
| tree | a9d5a178b34760d0aece8afece29c0a11812a79a /drivers/md/dm-thin-metadata.c | |
| parent | dm: eliminate unused "bioset" process for each bio-based DM device (diff) | |
| download | linux-dev-4c7da06f5a780bbf44ebd7547789e48536d0a823.tar.xz linux-dev-4c7da06f5a780bbf44ebd7547789e48536d0a823.zip | |
dm persistent data: eliminate unnecessary return values
dm_bm_unlock and dm_tm_unlock return an integer value but the returned
value is always 0. The calling code sometimes checks the return value
and sometimes doesn't.
Eliminate these unnecessary return values and also the checks for them.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-thin-metadata.c')
| -rw-r--r-- | drivers/md/dm-thin-metadata.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 6ba47cfb1443..1fa45695b68a 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -396,7 +396,9 @@ static int __superblock_all_zeroes(struct dm_block_manager *bm, int *result) } } - return dm_bm_unlock(b); + dm_bm_unlock(b); + + return 0; } static void __setup_btree_details(struct dm_pool_metadata *pmd) @@ -650,7 +652,9 @@ static int __open_metadata(struct dm_pool_metadata *pmd) } __setup_btree_details(pmd); - return dm_bm_unlock(sblock); + dm_bm_unlock(sblock); + + return 0; bad_cleanup_data_sm: dm_sm_destroy(pmd->data_sm); @@ -1297,7 +1301,9 @@ static int __release_metadata_snap(struct dm_pool_metadata *pmd) dm_btree_del(&pmd->details_info, le64_to_cpu(disk_super->device_details_root)); dm_sm_dec_block(pmd->metadata_sm, held_root); - return dm_tm_unlock(pmd->tm, copy); + dm_tm_unlock(pmd->tm, copy); + + return 0; } int dm_pool_release_metadata_snap(struct dm_pool_metadata *pmd) @@ -1327,7 +1333,9 @@ static int __get_metadata_snap(struct dm_pool_metadata *pmd, disk_super = dm_block_data(sblock); *result = le64_to_cpu(disk_super->held_root); - return dm_bm_unlock(sblock); + dm_bm_unlock(sblock); + + return 0; } int dm_pool_get_metadata_snap(struct dm_pool_metadata *pmd, |