devm_kasprintf() can return a NULL pointer on failure but this returned value is not checked. Fix this lack and check the returned value.
Found by code review.
Cc: stable@vger.kernel.org Fixes: 32c170ff15b0 ("pinctrl: stm32: set default gpio line names using pin names") Signed-off-by: Ma Ke make24@iscas.ac.cn --- drivers/pinctrl/stm32/pinctrl-stm32.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c index a8673739871d..53306d939d14 100644 --- a/drivers/pinctrl/stm32/pinctrl-stm32.c +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c @@ -1374,8 +1374,13 @@ static int stm32_gpiolib_register_bank(struct stm32_pinctrl *pctl, struct fwnode
for (i = 0; i < npins; i++) { stm32_pin = stm32_pctrl_get_desc_pin_from_gpio(pctl, bank, i); - if (stm32_pin && stm32_pin->pin.name) + if (stm32_pin && stm32_pin->pin.name) { names[i] = devm_kasprintf(dev, GFP_KERNEL, "%s", stm32_pin->pin.name); + if (!name[i]) { + err = -ENOMEM; + goto err_clk; + } + } else names[i] = NULL; }