From 55a4c5c515c1f4b4bde00c443e71ff9f3822013e Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 22 Apr 2010 11:40:53 +0200 Subject: [PATCH] nouveau: off by one in nv50_gpio_location() If "gpio->line" is 32 then "nv50_gpio_reg[gpio->line >> 3]" reads past the end of the array. Signed-off-by: Dan Carpenter Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nv50_gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nv50_gpio.c b/drivers/gpu/drm/nouveau/nv50_gpio.c index c61782b314e..bb47ad73726 100644 --- a/drivers/gpu/drm/nouveau/nv50_gpio.c +++ b/drivers/gpu/drm/nouveau/nv50_gpio.c @@ -31,7 +31,7 @@ nv50_gpio_location(struct dcb_gpio_entry *gpio, uint32_t *reg, uint32_t *shift) { const uint32_t nv50_gpio_reg[4] = { 0xe104, 0xe108, 0xe280, 0xe284 }; - if (gpio->line > 32) + if (gpio->line >= 32) return -EINVAL; *reg = nv50_gpio_reg[gpio->line >> 3]; -- 2.39.3