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authorHeinrich Schuchardt <xypron.glpk@gmx.de>2017-10-08 07:57:25 +0300
committerAlexander Graf <agraf@suse.de>2017-10-09 08:00:37 +0300
commit7f8ec5b63e5a8774bfcadafbc0d9583686b00455 (patch)
tree7e2f713e3ef24dbae4cbcbf605492e40740a1a7b /lib/efi_selftest
parentc155dfeb1e17181998e66830b677baa8983daf6b (diff)
downloadu-boot-7f8ec5b63e5a8774bfcadafbc0d9583686b00455.tar.xz
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>
Diffstat (limited to 'lib/efi_selftest')
-rw-r--r--lib/efi_selftest/efi_selftest_tpl.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/efi_selftest/efi_selftest_tpl.c b/lib/efi_selftest/efi_selftest_tpl.c
index 0b78ee7595..b8c0e70262 100644
--- a/lib/efi_selftest/efi_selftest_tpl.c
+++ b/lib/efi_selftest/efi_selftest_tpl.c
@@ -26,7 +26,8 @@ static void EFIAPI notify(struct efi_event *event, void *context)
{
unsigned int *count = context;
- ++*count;
+ if (count)
+ ++*count;
}
/*