Patch merged into coreboot/master: bcf07c3 libpayload: don't dereference null pointer in exception handler

the following patch was just integrated into master:
commit bcf07c3f24e949b6a16f69ca5d21c5ecb1c9056e
Author: Patrick Georgi 
Date:   Mon Dec 29 19:34:56 2014 +0100

libpayload: don't dereference null pointer in exception handler

Change-Id: I93e5e2488ddd616c91769beb1acd96f8ebd7d505
    Signed-off-by: Patrick Georgi 
    Found-by: Coverity Scan
    Reviewed-on: http://review.coreboot.org/7971
    Tested-by: build bot (Jenkins)
    Reviewed-by: Martin Roth 
    Reviewed-by: Paul Menzel

See http://review.coreboot.org/7971 for details.

-gerrit