efi_selftest: avoid dereferencing NULL in tpl test
authorHeinrich Schuchardt <xypron.glpk@gmx.de>
Sun, 8 Oct 2017 04:57:25 +0000 (06:57 +0200)
committerAlexander Graf <agraf@suse.de>
Mon, 9 Oct 2017 05:00:37 +0000 (07:00 +0200)
commit7f8ec5b63e5a8774bfcadafbc0d9583686b00455
tree7e2f713e3ef24dbae4cbcbf605492e40740a1a7b
parentc155dfeb1e17181998e66830b677baa8983daf6b
efi_selftest: avoid dereferencing NULL in tpl test

The task priority levels test uses two events one passes the
notification counter as context. The other passes NULL.
Both use the same notification function. So we need to check
for NULL here.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
lib/efi_selftest/efi_selftest_tpl.c