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| author | Stefan Behrens <sbehrens@giantdisaster.de> | 2013-09-11 09:59:22 +0200 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2013-09-21 11:05:28 -0400 |
| commit | a724b4369097897db45d61108c0e976912e586c7 (patch) | |
| tree | 3821e5db97ad5fb4b11364e3f7f3d595b20c5ebd /fs/btrfs | |
| parent | f4ab9ea706f2c6e4aad544145353b81afe7500e1 (diff) | |
| download | linux-a724b4369097897db45d61108c0e976912e586c7.tar.gz linux-a724b4369097897db45d61108c0e976912e586c7.tar.bz2 linux-a724b4369097897db45d61108c0e976912e586c7.zip | |
Btrfs: add the missing mutex unlock in write_all_supers()
The BUG() was replaced by btrfs_error() and return -EIO with the
patch "get rid of one BUG() in write_all_supers()", but the missing
mutex_unlock() was overlooked.
The 0-DAY kernel build service from Intel reported the missing
unlock which was found by the coccinelle tool:
fs/btrfs/disk-io.c:3422:2-8: preceding lock on line 3374
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/disk-io.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 72cf08b2be85..4ae17ed13b32 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3416,6 +3416,7 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors) if (total_errors > max_errors) { printk(KERN_ERR "btrfs: %d errors while writing supers\n", total_errors); + mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); /* FUA is masked off if unsupported and can't be the reason */ btrfs_error(root->fs_info, -EIO, |