Commit 8546e3ce authored by Krzysztof Helt's avatar Krzysztof Helt Committed by Geert Uytterhoeven

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: default avatarKrzysztof Helt <>
Signed-off-by: default avatarGeert Uytterhoeven <>
parent 87fbaf6a
......@@ -2242,6 +2242,9 @@ static int ext_setcolreg(unsigned int regno, unsigned int red,
if (!external_vgaiobase)
return 1;
if (regno > 255)
return 1;
switch (external_card_type) {
case IS_VGA:
OUTB(0x3c8, regno);
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