pinctrl: stm32: Add check for devm_kcalloc

stable inclusion
from stable-v6.6.5
commit 3e3fa8056fd259f34e6f0c02b54d17893114c909
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8N21P

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3e3fa8056fd259f34e6f0c02b54d17893114c909



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[ Upstream commit b0eeba527e704d6023a6cd9103f929226e326b03 ]

Add check for the return value of devm_kcalloc() and return the error
if it fails in order to avoid NULL pointer dereference.

Fixes: 32c170ff ("pinctrl: stm32: set default gpio line names using pin names")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Acked-by: Valentin Caron <valentin.caron@foss.st.com>
Link: https://lore.kernel.org/r/20231031080807.3600656-1-nichen@iscas.ac.cn


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>