[PATCH 4.9 18/86] cpupowerutils: bench - Fix cpu online check

From: Greg Kroah-Hartman
Date: Fri Feb 02 2018 - 12:09:02 EST


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

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

From: Abhishek Goel <huntbag@xxxxxxxxxxxxxxxxxx>


[ Upstream commit 53d1cd6b125fb9d69303516a1179ebc3b72f797a ]

cpupower_is_cpu_online was incorrectly checking for 0. This patch fixes
this by checking for 1 when the cpu is online.

Signed-off-by: Abhishek Goel <huntbag@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/power/cpupower/bench/system.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/power/cpupower/bench/system.c
+++ b/tools/power/cpupower/bench/system.c
@@ -61,7 +61,7 @@ int set_cpufreq_governor(char *governor,

dprintf("set %s as cpufreq governor\n", governor);

- if (cpupower_is_cpu_online(cpu) != 0) {
+ if (cpupower_is_cpu_online(cpu) != 1) {
perror("cpufreq_cpu_exists");
fprintf(stderr, "error: cpu %u does not exist\n", cpu);
return -1;