6.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ma Ke <make24@xxxxxxxxxxx>
commit b0f0e3f0552a566def55c844b0d44250c58e4df6 upstream.
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@xxxxxxxxxxxxxxx
Fixes: 32c170ff15b0 ("pinctrl: stm32: set default gpio line names using pin names")
Signed-off-by: Ma Ke <make24@xxxxxxxxxxx>
Link: https://lore.kernel.org/20240906100326.624445-1-make24@xxxxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pinctrl/stm32/pinctrl-stm32.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -1374,10 +1374,15 @@ static int stm32_gpiolib_register_bank(s
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);
- else
+ if (!names[i]) {
+ err = -ENOMEM;
+ goto err_clk;
+ }
+ } else {
names[i] = NULL;
+ }
}
bank->gpio_chip.names = (const char * const *)names;
