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authorSam Ravnborg <srn@skov.dk>2017-07-03 22:07:41 +0200
committerLucas Stach <l.stach@pengutronix.de>2017-07-07 14:37:59 +0200
commit3401a62343a5068c9948c81390c3781d866ada54 (patch)
tree3a2cfded429a5c9510cc5d09cee5a79e3b72b868 /common/state/backend_format_dtb.c
parent90b0100ad82343fd7cd2bd08e5147959d2da2e2c (diff)
downloadbarebox-3401a62343a5068c9948c81390c3781d866ada54.tar.gz
barebox-3401a62343a5068c9948c81390c3781d866ada54.tar.xz
gpio: fix null pointer exception when there is no oftree
In a system with oftree support enabled but with no oftree the of_gpiochip_scan_hogs() would fail due to device_node equals NULL. Check device_node and return with 0 in this situation, as this mirrors what would have happened before we added support for gpio-hogs. Use IS_ENABLED(CONFIG_OFDEVICE) to teach compiler to leave out the of_* specific functions if not needed. Fixes: 37e6bee7 ("gpiolib: Add support for GPIO "hog" nodes") Signed-off-by: Alexander Kurz <akurz@blala.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Diffstat (limited to 'common/state/backend_format_dtb.c')
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