intel/apollolake: Fix check for return value of pmc_gpe_route_to_gpio

pmc_gpe_route_to_gpio returns -1 on error. However, the value was being
stored in unsigned int and compared against -1. Fix this by using local
variable ret.

Change-Id: I5ec824949d4ee0fbdbb2ffdc9fc9d4762455b27b
Reported-by: Coverity ID 1357443, 1357442, 1357441
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/16218
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

0 files changed, 0 insertions, 0 deletions