tools / cpupower: Fix no idle state information return value
authorPrarit Bhargava <prarit@redhat.com>
Sun, 14 Dec 2014 14:06:38 +0000 (09:06 -0500)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Fri, 19 Dec 2014 22:01:12 +0000 (23:01 +0100)
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.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
tools/power/cpupower/utils/helpers/sysfs.c

index 09afe5d87f2bbe34387e1257cfcc67bd5d16d4dc..4e8fe2c7b05475ca8e6d015dd20228c5a53b957f 100644 (file)
@@ -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))