Commit 740cdafd authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Will Deacon
Browse files

kselftest/arm64/gcs: Correctly check return value when disabling GCS 



The return value was not assigned to 'ret', so the check afterwards
does not do anything.

Fixes: 3d37d430 ("kselftest/arm64: Add very basic GCS test program")
Signed-off-by: default avatarThomas Weißschuh <linux@weissschuh.net>
Reviewed-by: default avatarMark Brown <broonie@kernel.org>
Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 50af0242

tools/testing/selftests/arm64/gcs/basic-gcs.c

+1 −1
Original line number Diff line number Diff line
@@ -410,7 +410,7 @@ int main(void) 
	}



	/* One last test: disable GCS, we can do this one time */

	my_syscall5(__NR_prctl, PR_SET_SHADOW_STACK_STATUS, 0, 0, 0, 0);

	ret = my_syscall5(__NR_prctl, PR_SET_SHADOW_STACK_STATUS, 0, 0, 0, 0);

	if (ret != 0)

		ksft_print_msg("Failed to disable GCS: %d\n", ret);