[PATCH] drm_mga bitops -> long fix

Silence bitop on non-long argument warnings.

[ Not just silence warnings, but fix portability bug ]

drivers/char/drm/mga_drv.h

@@ -38,7 +38,7 @@ typedef struct drm_mga_primary_buffer {
 
 	u32 tail;
 	int space;
-	volatile int wrapped;
+	volatile long wrapped;
 
 	volatile u32 *status;