From: Gianfranco Trad <gianf.trad@gmail.com>
Date: Thu, 29 Aug 2024 15:37:25 +0000 (+0200)
Subject: selftests: timers: improve timer_create failure message
X-Git-Tag: v6.13-rc1~161^2~21
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d70d4218339e657e80ea478e43ec327cf374826b;p=thirdparty%2Fkernel%2Flinux.git

selftests: timers: improve timer_create failure message

improve timer_create failure message with strerror() function
to give more information to the user.

Signed-off-by: Gianfranco Trad <gianf.trad@gmail.com>
Acked-by: John Stultz <jstultz@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
---

diff --git a/tools/testing/selftests/timers/alarmtimer-suspend.c b/tools/testing/selftests/timers/alarmtimer-suspend.c
index 62da2a3f949ec..9877158a08531 100644
--- a/tools/testing/selftests/timers/alarmtimer-suspend.c
+++ b/tools/testing/selftests/timers/alarmtimer-suspend.c
@@ -29,6 +29,7 @@
 #include <stdlib.h>
 #include <pthread.h>
 #include <include/vdso/time64.h>
+#include <errno.h>
 #include "../kselftest.h"
 
 #define CLOCK_REALTIME			0
@@ -142,8 +143,8 @@ int main(void)
 
 		alarmcount = 0;
 		if (timer_create(alarm_clock_id, &se, &tm1) == -1) {
-			printf("timer_create failed, %s unsupported?\n",
-					clockstring(alarm_clock_id));
+			printf("timer_create failed, %s unsupported?: %s\n",
+					clockstring(alarm_clock_id), strerror(errno));
 			break;
 		}