Commit 8546e3ce authored Oct 24, 2009 by Krzysztof Helt Committed by Geert Uytterhoeven Dec 06, 2009

fbdev: atafb - add palette register check



Add check if palette register number is in correct range
for few drivers which miss it. The regno value comes
indirectly from user space.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

parent 87fbaf6a

drivers/video/atafb.c

+3 −0

Original line number	Original line	Diff line number	Diff line
	@@ -2242,6 +2242,9 @@ static int ext_setcolreg(unsigned int regno, unsigned int red,
	if (!external_vgaiobase)		if (!external_vgaiobase)
	return 1;		return 1;

			if (regno > 255)
			return 1;

	switch (external_card_type) {		switch (external_card_type) {
	case IS_VGA:		case IS_VGA:
	OUTB(0x3c8, regno);		OUTB(0x3c8, regno);