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(parent: 4952759) | patch
gpio: at91: add sanity check for the NULL pointer
authorWu, Josh <Josh.wu@atmel.com>
Wed, 7 May 2014 08:50:45 +0000 (16:50 +0800)
committerAndreas Bießmann <andreas.devel@googlemail.com>
Mon, 26 May 2014 22:10:45 +0000 (00:10 +0200)
commit7d82d897722f57389ebe15924f47fab452cc3a19
tree73206e6aa46e6e1d32ecb51f050a3507505ca555tree | snapshot
parent495275925192edb0c5bd6cb1e3b6f85162ffd06bcommit | diff
gpio: at91: add sanity check for the NULL pointer

We need check the NULL pointer as at91_pio_get_port() may return NULL.

Also print a error message when at91_pio_get_port() failed otherwise we
cannot notice the failure.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
drivers/gpio/at91_gpio.c diff | blob | history
Cloned from git://git.denx.de/u-boot.git