xfs: make xfs_dir_cilookup_result use unsigned char

For consistency with the result of the code.
Signed-off-by: NDave Chinner <david@fromorbit.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>

fs/xfs/xfs_dir2.c

@@ -247,7 +247,7 @@ xfs_dir_createname(
 int
 xfs_dir_cilookup_result(
 	struct xfs_da_args *args,
-	const char	*name,
+	const unsigned char *name,
 	int		len)
 {
 	if (args->cmpresult == XFS_CMP_DIFFERENT)

fs/xfs/xfs_dir2.h

@@ -100,7 +100,7 @@ extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp,
 extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
 				struct xfs_dabuf *bp);
 
-extern int xfs_dir_cilookup_result(struct xfs_da_args *args, const char *name,
-				int len);
+extern int xfs_dir_cilookup_result(struct xfs_da_args *args,
+				const unsigned char *name, int len);
 
 #endif	/* __XFS_DIR2_H__ */