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| author | Shawn Guo <shawn.guo@linaro.org> | 2013-05-28 08:22:32 +0200 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2013-05-28 08:49:31 +0200 |
| commit | 24c7a381720843f17efb42de81f7e85aefd6f616 (patch) | |
| tree | 6deb8d5f54bf300f2de7c5de76e8d8e2fb1bfded /drivers/thermal | |
| parent | Merge tag 'trace-fixes-v3.10-rc1' of git://git.kernel.org/pub/scm/linux/kerne... (diff) | |
| download | linux-24c7a381720843f17efb42de81f7e85aefd6f616.tar.xz linux-24c7a381720843f17efb42de81f7e85aefd6f616.zip | |
thermal: cpu_cooling: fix 'descend' check in get_property()
The variable 'descend' is initialized as -1 in function get_property(),
and will never get any chance to be updated by the following code.
if (freq != CPUFREQ_ENTRY_INVALID && descend != -1)
descend = !!(freq > table[i].frequency);
This makes function get_property() return the wrong frequency for given
cooling level if the frequency table is sorted in ascending. Fix it
by correcting the 'descend' check in if-condition to 'descend == -1'.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/cpu_cooling.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c index c94bf2e5de62..82e15dbb3ac7 100644 --- a/drivers/thermal/cpu_cooling.c +++ b/drivers/thermal/cpu_cooling.c @@ -167,7 +167,7 @@ static int get_property(unsigned int cpu, unsigned long input, continue; /* get the frequency order */ - if (freq != CPUFREQ_ENTRY_INVALID && descend != -1) + if (freq != CPUFREQ_ENTRY_INVALID && descend == -1) descend = !!(freq > table[i].frequency); freq = table[i].frequency; |