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_id.c b/fs/squashfs/xattr_id.c
index a741012..cfb4110 100644
--- a/fs/squashfs/xattr_id.c
+++ b/fs/squashfs/xattr_id.c
@@ -39,7 +39,7 @@
  * Map xattr id using the xattr id look up table
  */
 int squashfs_xattr_lookup(struct super_block *sb, unsigned int index,
-		int *count, int *size, long long *xattr)
+		int *count, unsigned int *size, unsigned long long *xattr)
 {
 	struct squashfs_sb_info *msblk = sb->s_fs_info;
 	int block = SQUASHFS_XATTR_BLOCK(index);