This is a note to let you know that I've just added the patch titled
pinctrl: npcm7xx: Add missing check for ioremap
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pinctrl-npcm7xx-add-missing-check-for-ioremap.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit b64b104469463ab4faf3bdb73a9615821d3d85b5
Author: Jiasheng Jiang <jiasheng@xxxxxxxxxxx>
Date: Wed Jun 7 17:58:29 2023 +0800
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@xxxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230607095829.1345-1-jiasheng@xxxxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
index 1c4e89b046de1..ac4c69132fa03 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,
