From: Ville Syrjala Date: Thu, 24 Jul 2008 04:31:30 +0000 (-0700) Subject: atyfb: correct_chipset() can fail X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3880b0b5297ae9bf58a7662d13a46b5d5f0b2af6;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git atyfb: correct_chipset() can fail Atari probe code relies on correct_chipset() failing if the device is not a mach64 GX/CX. aty_chips[] array would be indexed with -1 in that case. Signed-off-by: Ville Syrjala Cc: "Antonino A. Daplas" Cc: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c index d7ba3f1a4d80..d6903c70bee5 100644 --- a/drivers/video/aty/atyfb_base.c +++ b/drivers/video/aty/atyfb_base.c @@ -424,7 +424,6 @@ static struct { #endif /* CONFIG_FB_ATY_CT */ }; -/* can not fail */ static int __devinit correct_chipset(struct atyfb_par *par) { u8 rev; @@ -437,6 +436,9 @@ static int __devinit correct_chipset(struct atyfb_par *par) if (par->pci_id == aty_chips[i].pci_id) break; + if (i < 0) + return -ENODEV; + name = aty_chips[i].name; par->pll_limits.pll_max = aty_chips[i].pll; par->pll_limits.mclk = aty_chips[i].mclk;