commit 936a3f770b8de7042d793272f008ef1bb08522e9
author Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Mon Jun 06 01:27:34 2011 +0000
committer Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Sun Jul 17 00:11:15 2011 +0000
tree 3863e60ae9cf13e48ecf2bcb131c92bc9c2b848b
parent d933990c57b498c092ceef591c7c5d69dbfe9f30

viafb: improve pitch handling

This patch adds checks for minimum and maximum pitch size to prevent
invalid settings which could otherwise crash the machine. Also the
alignment is done in a slightly more readable way.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: stable@kernel.org

drivers/video/via/via_modesetting.h

diff --git a/drivers/video/via/via_modesetting.h b/drivers/video/via/via_modesetting.h
index ae35cfd..0138845 100644
--- a/drivers/video/via/via_modesetting.h
+++ b/drivers/video/via/via_modesetting.h
@@ -28,6 +28,11 @@
 
 #include <linux/types.h>
 
+
+#define VIA_PITCH_SIZE	(1<<3)
+#define VIA_PITCH_MAX	0x3FF8
+
+
 void via_set_primary_address(u32 addr);
 void via_set_secondary_address(u32 addr);
 void via_set_primary_pitch(u32 pitch);