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b0f0e3f055
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> Link: https://lore.kernel.org/20240906100326.624445-1-make24@iscas.ac.cn Signed-off-by: Linus Walleij <linus.walleij@linaro.org>