From c71d0ed3238cd7bf0c4ec8e5dde8965ae291de12 Mon Sep 17 00:00:00 2001 From: "Shuah Khan (Samsung OSG)" Date: Wed, 26 Sep 2018 13:07:11 -0600 Subject: [PATCH] selftests: watchdog: fix message when /dev/watchdog open fails When /dev/watchdog open fails, watchdog exits with "watchdog not enabled" message. This is incorrect when open fails due to insufficient privilege. Fix message to clearly state the reason when open fails with EACCESS when a non-root user runs it. Signed-off-by: Shuah Khan (Samsung OSG) --- tools/testing/selftests/watchdog/watchdog-test.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c index 6e290874b70e2..e029e2017280f 100644 --- a/tools/testing/selftests/watchdog/watchdog-test.c +++ b/tools/testing/selftests/watchdog/watchdog-test.c @@ -89,7 +89,13 @@ int main(int argc, char *argv[]) fd = open("/dev/watchdog", O_WRONLY); if (fd == -1) { - printf("Watchdog device not enabled.\n"); + if (errno == ENOENT) + printf("Watchdog device not enabled.\n"); + else if (errno == EACCES) + printf("Run watchdog as root.\n"); + else + printf("Watchdog device open failed %s\n", + strerror(errno)); exit(-1); } -- 2.39.5