[PATCH 2/2] Fix no idle state information return value

From: Prarit Bhargava
Date: Sun Dec 14 2014 - 09:06:58 EST

sysfs_get_idlestate_count() returns an unsigned int. Returning -ENODEV
is not the right thing to do here, and in any case is handled the same
way as if there are no states found.

Cc: Thomas Renninger <trenn@xxxxxxx>
Cc: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Prarit Bhargava <prarit@xxxxxxxxxx>
tools/power/cpupower/utils/helpers/sysfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/power/cpupower/utils/helpers/sysfs.c b/tools/power/cpupower/utils/helpers/sysfs.c
index 09afe5d..4e8fe2c 100644
--- a/tools/power/cpupower/utils/helpers/sysfs.c
+++ b/tools/power/cpupower/utils/helpers/sysfs.c
@@ -361,7 +361,7 @@ unsigned int sysfs_get_idlestate_count(unsigned int cpu)

snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU "cpuidle");
if (stat(file, &statbuf) != 0 || !S_ISDIR(statbuf.st_mode))
- return -ENODEV;
+ return 0;

snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU "cpu%u/cpuidle/state0", cpu);
if (stat(file, &statbuf) != 0 || !S_ISDIR(statbuf.st_mode))

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