diff options
| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2023-06-07 17:58:29 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-19 16:36:13 +0200 |
| commit | ee16d015d84a3b16de3a1af38ebf57db164b1083 (patch) | |
| tree | 1c11575ff339646edbaa7e8be263cb409344d453 | |
| parent | cc76bc8db5ef29fba008eea7b0ddf842c46c4d51 (diff) | |
pinctrl: npcm7xx: Add missing check for ioremap
[ Upstream commit ad64639417161e90b30dda00486570eb150aeee5 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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, |