1 files changed, 3 insertions, 1 deletions

diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 6f21adf9479a..d9b0e92b3602 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -720,8 +720,10 @@ static ssize_t jfs_quota_write(struct super_block *sb, int type,
                 blk++;
         }
 out:
-        if (len == towrite)
+        if (len == towrite) {
+                mutex_unlock(&inode->i_mutex);
                 return err;
+        }
         if (inode->i_size < off+len-towrite)
                 i_size_write(inode, off+len-towrite);
         inode->i_version++;