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pinctrl: npcm7xx: Add missing check for ioremap 

[ Upstream commit ad64639417 ]

Add check for ioremap() and return the error if it fails in order to
guarantee the success of ioremap().

Fixes: 3b588e43ee ("pinctrl: nuvoton: add NPCM7xx pinctrl and GPIO driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20230607095829.1345-1-jiasheng@iscas.ac.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jiasheng Jiang 2023-06-07 17:58:29 +08:00 committed by Greg Kroah-Hartman
parent fc45a8be5e
commit c32afc7e86
1 changed files with 2 additions and 0 deletions
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2
drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
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@ -1878,6 +1878,8 @@ static int npcm7xx_gpio_of(struct npcm7xx_pinctrl *pctrl)
} }
pctrl->gpio_bank[id].base = ioremap(res.start, resource_size(&res)); pctrl->gpio_bank[id].base = ioremap(res.start, resource_size(&res));
if (!pctrl->gpio_bank[id].base)
return -EINVAL;
ret = bgpio_init(&pctrl->gpio_bank[id].gc, dev, 4, ret = bgpio_init(&pctrl->gpio_bank[id].gc, dev, 4,
pctrl->gpio_bank[id].base + NPCM7XX_GP_N_DIN, pctrl->gpio_bank[id].base + NPCM7XX_GP_N_DIN,