tree d3277cb3ce0b5e5ee2ac3b9387b0088add824e23
parent fdb5afa93553261bfcaad843297dd19c51d2d710
author Axel Lin <axel.lin@ingics.com> 1432365408 +0800
committer Stefano Babic <sbabic@denx.de> 1432642389 +0200

pwm: imx: Prevent NULL pointer dereference

pwm_id_to_reg() can return NULL, so add NULL testing to prevent NULL pointer
dereference.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Stefano Babic <sbabic@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>