[PATCH] selftests/thermal: Remove duplicate newlines in perror calls

[WangYuli]

The perror() function automatically appends a newline character,
so the explicit '\n' in the format strings is redundant and results
in duplicate newlines in the output.

Remove the redundant '\n' characters from perror() calls in
workload_hint_test.c to fix the formatting.

Signed-off-by: WangYuli <wangy...@uniontech.com>
---
 .../intel/workload_hint/workload_hint_test.c       | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git 
a/tools/testing/selftests/thermal/intel/workload_hint/workload_hint_test.c 
b/tools/testing/selftests/thermal/intel/workload_hint/workload_hint_test.c
index bda006af8b1b..ba58589a1145 100644
--- a/tools/testing/selftests/thermal/intel/workload_hint/workload_hint_test.c
+++ b/tools/testing/selftests/thermal/intel/workload_hint/workload_hint_test.c
@@ -32,12 +32,12 @@ void workload_hint_exit(int signum)
 
        fd = open(WORKLOAD_ENABLE_ATTRIBUTE, O_RDWR);
        if (fd < 0) {
-               perror("Unable to open workload type feature enable file\n");
+               perror("Unable to open workload type feature enable file");
                exit(1);
        }
 
        if (write(fd, "0\n", 2) < 0) {
-               perror("Can't disable workload hints\n");
+               perror("Can't disable workload hints");
                exit(1);
        }
 
@@ -70,12 +70,12 @@ int main(int argc, char **argv)
                sprintf(delay_str, "%s\n", argv[1]);
                fd = open(WORKLOAD_NOTIFICATION_DELAY_ATTRIBUTE, O_RDWR);
                if (fd < 0) {
-                       perror("Unable to open workload notification delay\n");
+                       perror("Unable to open workload notification delay");
                        exit(1);
                }
 
                if (write(fd, delay_str, strlen(delay_str)) < 0) {
-                       perror("Can't set delay\n");
+                       perror("Can't set delay");
                        exit(1);
                }
 
@@ -92,12 +92,12 @@ int main(int argc, char **argv)
        /* Enable feature via sysfs knob */
        fd = open(WORKLOAD_ENABLE_ATTRIBUTE, O_RDWR);
        if (fd < 0) {
-               perror("Unable to open workload type feature enable file\n");
+               perror("Unable to open workload type feature enable file");
                exit(1);
        }
 
        if (write(fd, "1\n", 2) < 0) {
-               perror("Can't enable workload hints\n");
+               perror("Can't enable workload hints");
                exit(1);
        }
 
@@ -108,7 +108,7 @@ int main(int argc, char **argv)
        while (1) {
                fd = open(WORKLOAD_TYPE_INDEX_ATTRIBUTE, O_RDONLY);
                if (fd < 0) {
-                       perror("Unable to open workload type file\n");
+                       perror("Unable to open workload type file");
                        exit(1);
                }
 
-- 
2.50.0