[PATCH] dvb_usercopy() fix

Fix some breakage in dvb_usercopy() introduced by sparse cleanups in -rc2.
Signed-off-by: Johannes Stezenbach <js@convergence.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/media/dvb/dvb-core/dvb_functions.c

@@ -36,7 +36,11 @@ int dvb_usercopy(struct inode *inode, struct file *file,
         /*  Copy arguments into temp kernel buffer  */
         switch (_IOC_DIR(cmd)) {
         case _IOC_NONE:
-                parg = NULL;
+		/*
+		 * For this command, the pointer is actually an integer
+		 * argument.
+		 */
+                parg = (void *) arg;
                 break;
         case _IOC_READ: /* some v4l ioctls are marked wrong ... */
         case _IOC_WRITE: