[PATCH 6.6 336/583] kselftest/alsa - conf: Stringify the printed errno in sysfs_get()

[Greg Kroah-Hartman]

6.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mirsad Todorovac <mirsad.todorovac@xxxxxxxxxxxx>

[ Upstream commit fd38dd6abda589a8771e7872e4dea28c99c6a6ef ]

GCC 13.2.0 reported the warning of the print format specifier:

conf.c: In function ‘sysfs_get’:
conf.c:181:72: warning: format ‘%s’ expects argument of type ‘char *’, \
			but argument 3 has type ‘int’ [-Wformat=]
  181 |                 ksft_exit_fail_msg("sysfs: unable to read value '%s': %s\n",
      |                                                                       ~^
      |                                                                        |
      |                                                                        char *
      |                                                                       %d

The fix passes strerror(errno) as it was intended, like in the sibling error
exit message.

Fixes: aba51cd0949ae ("selftests: alsa - add PCM test")
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: Jaroslav Kysela <perex@xxxxxxxx>
Cc: Takashi Iwai <tiwai@xxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: linux-sound@xxxxxxxxxxxxxxx
Cc: linux-kselftest@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Mirsad Todorovac <mirsad.todorovac@xxxxxxxxxxxx>
Acked-by: Mark Brown <broonie@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240107173704.937824-5-mirsad.todorovac@xxxxxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 tools/testing/selftests/alsa/conf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/alsa/conf.c b/tools/testing/selftests/alsa/conf.c
index 2f1685a3eae1..ff09038fdce6 100644
--- a/tools/testing/selftests/alsa/conf.c
+++ b/tools/testing/selftests/alsa/conf.c
@@ -186,7 +186,7 @@ static char *sysfs_get(const char *sysfs_root, const char *id)
 	close(fd);
 	if (len < 0)
 		ksft_exit_fail_msg("sysfs: unable to read value '%s': %s\n",
-				   path, errno);
+				   path, strerror(errno));
 	while (len > 0 && path[len-1] == '\n')
 		len--;
 	path[len] = '\0';
-- 
2.43.0