squashfs: xattr_lookup sparse fix

Sparse detected that unsigned pointer was being passed as int pointer.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
[fixed up to deal with code refactoring]
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
diff --git a/fs/squashfs/xattr.h b/fs/squashfs/xattr.h
index 4a96366..9da071a 100644
--- a/fs/squashfs/xattr.h
+++ b/fs/squashfs/xattr.h
@@ -25,7 +25,7 @@
 extern __le64 *squashfs_read_xattr_id_table(struct super_block *, u64,
 		u64 *, int *);
 extern int squashfs_xattr_lookup(struct super_block *, unsigned int, int *,
-		int *, long long *);
+		int *, unsigned long long *);
 #else
 static inline __le64 *squashfs_read_xattr_id_table(struct super_block *sb,
 		u64 start, u64 *xattr_table_start, int *xattr_ids)
@@ -35,7 +35,8 @@
 }
 
 static inline int squashfs_xattr_lookup(struct super_block *sb,
-		unsigned int index, int *count, int *size, long long *xattr)
+		unsigned int index, int *count, int *size,
+		unsigned long long *xattr)
 {
 	return 0;
 }