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authorMike Snitzer <snitzer@redhat.com>2019-04-15 16:40:08 -0400
committerMike Snitzer <snitzer@redhat.com>2019-04-18 16:18:33 -0400
commita1ed4d9e937678d15990694c32e1d104e54e97a3 (patch)
tree85e923dcefefb8bd42522b0e7f7c5aca407bc887 /drivers/md
parentc6e086e0c9b2133f38563707c96b22fd0906f570 (diff)
downloadlinux-a1ed4d9e937678d15990694c32e1d104e54e97a3.tar.gz
dm thin metadata: check __commit_transaction()'s return
Fix __reserve_metadata_snap() to return early if __commit_transaction() fails. Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-thin-metadata.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index ed3caceaed07..7381e477a945 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -1225,7 +1225,12 @@ static int __reserve_metadata_snap(struct dm_pool_metadata *pmd)
* We commit to ensure the btree roots which we increment in a
* moment are up to date.
*/
- __commit_transaction(pmd);
+ r = __commit_transaction(pmd);
+ if (r < 0) {
+ DMWARN("%s: __commit_transaction() failed, error = %d",
+ __func__, r);
+ return r;
+ }
/*
* Copy the superblock.