On a system which has only 4.00GHz set as the only available frequency,

[root@amd-pike-05 ~]# cpupower frequency-info
<snip>
  current policy: frequency should be within 4.00 GHz and 4.00 GHz.
                  The governor "userspace" may decide which speed to use
                  within this range.
<snip>

setting the frequency to 2.8GHz does not return an error.

[root@amd-pike-05 ~]# cpupower frequency-set --freq 2800MHz
Setting cpu: 0
Setting cpu: 1
Setting cpu: 2
Setting cpu: 3
Setting cpu: 4
Setting cpu: 5
Setting cpu: 6
Setting cpu: 7
[root@amd-pike-05 ~]#

The frequency set error should stop with an error message after the first
failure.  Fix the error return in cmd_freq_set() to read errors as less
than zero.

Signed-off-by: Prarit Bhargava <[email protected]>
Cc: Dominik Brodowski <[email protected]>
Cc: Thomas Renninger <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Cc: Alan Cox <[email protected]>
Cc: One Thousand Gnomes <[email protected]>
---
 tools/power/cpupower/utils/cpufreq-set.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/power/cpupower/utils/cpufreq-set.c 
b/tools/power/cpupower/utils/cpufreq-set.c
index a416de8..e5f78623 100644
--- a/tools/power/cpupower/utils/cpufreq-set.c
+++ b/tools/power/cpupower/utils/cpufreq-set.c
@@ -320,7 +320,7 @@ int cmd_freq_set(int argc, char **argv)
 
                printf(_("Setting cpu: %d\n"), cpu);
                ret = do_one_cpu(cpu, &new_pol, freq, policychange);
-               if (ret)
+               if (ret < 0)
                        break;
        }
 
-- 
1.7.9.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to