[PATCH] pinctrl: nuvoton: wpcm450: off by one in wpcm450_gpio_register()
Dan Carpenter
dan.carpenter at oracle.com
Fri Mar 18 18:11:31 AEDT 2022
The > WPCM450_NUM_BANKS should be >= or it leads to an out of bounds
access on the next line.
Fixes: a1d1e0e3d80a ("pinctrl: nuvoton: Add driver for WPCM450")
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
---
drivers/pinctrl/nuvoton/pinctrl-wpcm450.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c b/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c
index 661aa963e3fc..164d7a6e7b5b 100644
--- a/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c
+++ b/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c
@@ -1043,7 +1043,7 @@ static int wpcm450_gpio_register(struct platform_device *pdev,
gpio = &pctrl->gpio_bank[reg];
gpio->pctrl = pctrl;
- if (reg > WPCM450_NUM_BANKS)
+ if (reg >= WPCM450_NUM_BANKS)
return dev_err_probe(dev, -EINVAL,
"GPIO index %d out of range!\n", reg);
--
2.20.1
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