Ma Ke 0a2bab5ed1 pinctrl: single: fix potential NULL dereference in pcs_get_function() ...

commit 1c38a62f15 upstream.

pinmux_generic_get_function() can return NULL and the pointer 'function'
was dereferenced without checking against NULL. Add checking of pointer
'function' in pcs_get_function().

Found by code review.

Cc: stable@vger.kernel.org
Fixes: 571aec4df5 ("pinctrl: single: Use generic pinmux helpers for managing functions")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Link: https://lore.kernel.org/20240808041355.2766009-1-make24@iscas.ac.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-09-04 13:13:07 +02:00

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pinctrl: single: fix potential NULL dereference in pcs_get_function()

2024-09-04 13:13:07 +02:00

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