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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2023-06-07 12:58:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-07-19 17:21:37 +0300 |
| commit | c32afc7e864c9a3fe910b5da058719ad686efeff (patch) | |
| tree | 68b7d5ae04d1dee0fe2d9c5445b5a05dea6f59b9 /drivers/pinctrl | |
| parent | fc45a8be5e5289439ac9b0b3795d709baff04bf1 (diff) | |
| download | linux-c32afc7e864c9a3fe910b5da058719ad686efeff.tar.xz | |
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>
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 1c4e89b046de..ac4c69132fa0 100644 --- a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c +++ b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c @@ -1878,6 +1878,8 @@ 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, |