switch ->mknod() to umode_t

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index 8087fbc..22e9a78 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -213,7 +213,7 @@
 }
 
 static int bad_inode_mknod (struct inode *dir, struct dentry *dentry,
-			int mode, dev_t rdev)
+			umode_t mode, dev_t rdev)
 {
 	return -EIO;
 }