diff options
Diffstat (limited to 'fs/btrfs/volumes.c')
| -rw-r--r-- | fs/btrfs/volumes.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 105c5fe004db..d28e1761fdeb 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -583,6 +583,7 @@ static struct btrfs_fs_devices *clone_fs_devices(struct btrfs_fs_devices *orig) if (IS_ERR(fs_devices)) return fs_devices; + mutex_lock(&orig->device_list_mutex); fs_devices->total_devices = orig->total_devices; /* We have held the volume lock, it is safe to get the devices. */ @@ -611,8 +612,10 @@ static struct btrfs_fs_devices *clone_fs_devices(struct btrfs_fs_devices *orig) device->fs_devices = fs_devices; fs_devices->num_devices++; } + mutex_unlock(&orig->device_list_mutex); return fs_devices; error: + mutex_unlock(&orig->device_list_mutex); free_fs_devices(fs_devices); return ERR_PTR(-ENOMEM); } |