fix ! versus & precedence in various places

Fix various instances of

	if (!expr & mask)

which should probably have been

	if (!(expr & mask))

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Peter Osterlund <petero2@telia.com>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 93ae747..5b28fa2 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -427,7 +427,7 @@
 
 	monitor->feature = buffer[0x18];
 
-	if(!buffer[0x14] & 0x80) {
+	if(!(buffer[0x14] & 0x80)) {
 		if(!(buffer[0x14] & 0x08)) {
 			printk(KERN_INFO
 				"sisfb: WARNING: Monitor does not support separate syncs\n");