6.17-stable review patch. If anyone has any objections, please let me know.
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From: Jared Kangas jkangas@redhat.com
[ Upstream commit 6010d4d8b55b5d3ae1efb5502c54312e15c14f21 ]
s32_pmx_gpio_request_enable() does not initialize the newly-allocated gpio_pin_config::list before adding it to s32_pinctrl::gpio_configs. This could result in a linked list corruption.
Initialize the new list_head with INIT_LIST_HEAD() to fix this.
Fixes: fd84aaa8173d ("pinctrl: add NXP S32 SoC family support") Signed-off-by: Jared Kangas jkangas@redhat.com Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pinctrl/nxp/pinctrl-s32cc.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/pinctrl/nxp/pinctrl-s32cc.c b/drivers/pinctrl/nxp/pinctrl-s32cc.c index 51ecb8d0fb7e8..35511f83d0560 100644 --- a/drivers/pinctrl/nxp/pinctrl-s32cc.c +++ b/drivers/pinctrl/nxp/pinctrl-s32cc.c @@ -392,6 +392,7 @@ static int s32_pmx_gpio_request_enable(struct pinctrl_dev *pctldev,
gpio_pin->pin_id = offset; gpio_pin->config = config; + INIT_LIST_HEAD(&gpio_pin->list);
spin_lock_irqsave(&ipctl->gpio_configs_lock, flags); list_add(&gpio_pin->list, &ipctl->gpio_configs);