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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2023-06-07 11:58:29 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2023-06-09 09:42:52 +0200 |
| commit | ad64639417161e90b30dda00486570eb150aeee5 (patch) | |
| tree | 92b42e0d42861256cdcf32b3d376d81bd5c54d3b /drivers/pinctrl | |
| parent | pinctrl:sunplus: Add check for kmalloc (diff) | |
| download | linux-ad64639417161e90b30dda00486570eb150aeee5.tar.xz linux-ad64639417161e90b30dda00486570eb150aeee5.zip | |
pinctrl: npcm7xx: Add missing check for ioremap
Add check for ioremap() and return the error if it fails in order to
guarantee the success of ioremap().
Fixes: 3b588e43ee5c ("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>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c index 21e61c2a3798..843ffcd96877 100644 --- a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c +++ b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c @@ -1884,6 +1884,8 @@ static int npcm7xx_gpio_of(struct npcm7xx_pinctrl *pctrl) } 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, pctrl->gpio_bank[id].base + NPCM7XX_GP_N_DIN, |