tests: Use igt macros more

Often just folding together of the common if (cond) printf;
abort|igt_skip|igt_fail; pattern. But in a few cases I've ripped out
more since the igt macros will already print the condition and errno.

A few tests where more work (like ripping out return codes en masse)
is needed left as-is.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 4 deletions

diff --git a/tests/kms_setmode.c b/tests/kms_setmode.c
index 02d5850a..0b765a9c 100644
--- a/tests/kms_setmode.c
+++ b/tests/kms_setmode.c
@@ -709,10 +709,8 @@ int main(int argc, char **argv)
 
 	igt_skip_on_simulation();
 
-	if (dry_run && filter_test_id) {
-		fprintf(stderr, "only one of -d and -t is accepted\n");
-		exit(1);
-	}
+	igt_assert_f(!(dry_run && filter_test_id),
+		     "only one of -d and -t is accepted\n");
 
 	igt_fixture {
 		drm_fd = drm_open_any();