btrfsctl -A error code fixup

Send the error back to userland if the ioctl fails

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 05029656e42e..77f44494e229 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -453,7 +453,7 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
 {
         struct btrfs_ioctl_vol_args *vol;
         struct btrfs_fs_devices *fs_devices;
-        int ret;
+        int ret = 0;
         int len;
 
         vol = kmalloc(sizeof(*vol), GFP_KERNEL);
@@ -470,7 +470,7 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
         }
 out:
         kfree(vol);
-        return 0;
+        return ret;
 }
 
 static void btrfs_write_super_lockfs(struct super_block *sb)