static void __init of_unittest_overlay_8()

in unittest.c [2288:2377]

• 60 lines of code
• 7 McCabe index (conditional complexity)

static void __init of_unittest_overlay_8(void)
{
	int i, save_ovcs_id[2], ovcs_id;
	int overlay_nr = 8, unittest_nr = 8;
	const char *overlay_name;
	int ret;

	/* we don't care about device state in this test */

	EXPECT_BEGIN(KERN_INFO,
		     "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status");

	overlay_name = overlay_name_from_nr(overlay_nr + 0);

	ret = overlay_data_apply(overlay_name, &ovcs_id);
	if (!ret)
		unittest(0, "could not apply overlay \"%s\"\n", overlay_name);

	EXPECT_END(KERN_INFO,
		   "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/status");

	if (!ret)
		return;

	save_ovcs_id[0] = ovcs_id;
	of_unittest_track_overlay(ovcs_id, overlay_nr + 0);

	overlay_name = overlay_name_from_nr(overlay_nr + 1);

	EXPECT_BEGIN(KERN_INFO,
		     "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo");

	/* apply the overlays */
	ret = overlay_data_apply(overlay_name, &ovcs_id);

	EXPECT_END(KERN_INFO,
		   "OF: overlay: WARNING: memory leak will occur if overlay removed, property: /testcase-data/overlay-node/test-bus/test-unittest8/property-foo");

	if (!ret) {
		unittest(0, "could not apply overlay \"%s\"\n", overlay_name);
		return;
	}

	save_ovcs_id[1] = ovcs_id;
	of_unittest_track_overlay(ovcs_id, overlay_nr + 1);

	/* now try to remove first overlay (it should fail) */
	ovcs_id = save_ovcs_id[0];

	EXPECT_BEGIN(KERN_INFO,
		     "OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8");

	EXPECT_BEGIN(KERN_INFO,
		     "OF: overlay: overlay #6 is not topmost");

	ret = of_overlay_remove(&ovcs_id);

	EXPECT_END(KERN_INFO,
		   "OF: overlay: overlay #6 is not topmost");

	EXPECT_END(KERN_INFO,
		   "OF: overlay: node_overlaps_later_cs: #6 overlaps with #7 @/testcase-data/overlay-node/test-bus/test-unittest8");

	if (!ret) {
		/*
		 * Should never get here.  If we do, expect a lot of
		 * subsequent tracking and overlay removal related errors.
		 */
		unittest(0, "%s was destroyed @\"%s\"\n",
				overlay_name_from_nr(overlay_nr + 0),
				unittest_path(unittest_nr,
					PDEV_OVERLAY));
		return;
	}

	/* removing them in order should work */
	for (i = 1; i >= 0; i--) {
		ovcs_id = save_ovcs_id[i];
		if (of_overlay_remove(&ovcs_id)) {
			unittest(0, "%s not destroyed @\"%s\"\n",
					overlay_name_from_nr(overlay_nr + i),
					unittest_path(unittest_nr,
						PDEV_OVERLAY));
			return;
		}
		of_unittest_untrack_overlay(save_ovcs_id[i]);
	}

	unittest(1, "overlay test %d passed\n", 8);
}