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Commit 37e3ab00 authored by Adam Ford's avatar Adam Ford Committed by Greg Kroah-Hartman
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serial: mctrl_gpio: Check for NULL pointer



When using mctrl_gpio_to_gpiod, it dereferences gpios into a single
requested GPIO.  This dereferencing can break if gpios is NULL,
so this patch adds a NULL check before dereferencing it.  If
gpios is NULL, this function will also return NULL.

Signed-off-by: default avatarAdam Ford <aford173@gmail.com>
Reviewed-by: default avatarYegor Yefremov <yegorslists@googlemail.com>
Link: https://lore.kernel.org/r/20191006163314.23191-1-aford173@gmail.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5df884d4
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