[S390] vmlogrdr: module initialization function should return negative errors

Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/char/vmlogrdr.c

@@ -858,7 +858,7 @@ static int __init vmlogrdr_init(void)
 	for (i=0; i < MAXMINOR; ++i ) {
 		sys_ser[i].buffer = (char *) get_zeroed_page(GFP_KERNEL);
 		if (!sys_ser[i].buffer) {
-			rc = ENOMEM;
+			rc = -ENOMEM;
 			break;
 		}
 		sys_ser[i].current_position = sys_ser[i].buffer;