diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index cf0db005d2f58ab2ed2b42217777f643e6d0d235..acb3d63bc9dc763cf8e3518cfe66a233ee9ee63f 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -1598,7 +1598,7 @@ static loff_t configfs_dir_lseek(struct file *file, loff_t offset, int whence)
 			if (offset >= 0)
 				break;
 		default:
-			mutex_unlock(&file_inode(file)->i_mutex);
+			mutex_unlock(&dentry->d_inode->i_mutex);
 			return -EINVAL;
 	}
 	if (offset != file->f_pos) {