If "gpio->line" is 32 then "nv50_gpio_reg[gpio->line >> 3]" reads past the
end of the array.
Signed-off-by: Dan Carpenter <erro...@gmail.com>
diff --git a/drivers/gpu/drm/nouveau/nv50_gpio.c
b/drivers/gpu/drm/nouveau/nv50_gpio.c
index c61782b..bb47ad7 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];
------------------------------------------------------------------------------
--
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