selftests/media_tests/video_device_test.c

1 // SPDX-License-Identifier: GPL-2.0
4  * video_device_test - Video Device Test
20  *	sudo ./video_device_test -d /dev/videoX
22  *	While test is running, remove the device or unbind the driver and
23  *	ensure there are no use after free errors and other Oops in the
25  *	When possible, enable KaSan kernel config option for use-after-free
53 		return -1;  in priority_test()
59 		return -1;  in priority_test()
64 		result = -1;  in priority_test()
68 		printf("Priority wasn't set - test failed\n");  in priority_test()
69 		result = -1;  in priority_test()
76 		return -1;  in priority_test()
93 	       "While test is running, remove the device or unbind\n"  in loop_test()
94 	       "driver and ensure there are no use after free errors\n"  in loop_test()
96 	       "kernel config option for use-after-free error detection.\n\n");  in loop_test()
112 		count--;  in loop_test()
125 		printf("Usage: %s [-d </dev/videoX>]\n", argv[0]);  in main()
126 		exit(-1);  in main()
130 	while ((opt = getopt(argc, argv, "d:")) != -1) {  in main()
133 			strncpy(video_dev, optarg, sizeof(video_dev) - 1);  in main()
134 			video_dev[sizeof(video_dev)-1] = '\0';  in main()
137 			printf("Usage: %s [-d </dev/videoX>]\n", argv[0]);  in main()
138 			exit(-1);  in main()
144 	if (fd == -1) {  in main()
146 		exit(-1);  in main()
151 		printf("Priority test - PASSED\n");  in main()
153 		printf("Priority test - FAILED\n");  in main()