diff options
| author | Zhang Rui <rui.zhang@intel.com> | 2014-01-02 11:57:48 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2014-09-25 17:02:23 +0800 |
| commit | 25a434675eaa351f90b51866a982accac5ee6c61 (patch) | |
| tree | 00c73d07499de04473db0e768d187d8086b3e5d4 | |
| parent | e86c742e299cbe321870aa00bcbd4985d1f628fe (diff) | |
Thermal cpu cooling: return error if no valid cpu frequency entry
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
(cherry picked from commit a116776f7b6052599df0c67db29c30ea9d69d7ee)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
| -rw-r--r-- | drivers/thermal/cpu_cooling.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c index 3331b1a12f85..e1f0830835e5 100644 --- a/drivers/thermal/cpu_cooling.c +++ b/drivers/thermal/cpu_cooling.c @@ -173,6 +173,11 @@ static int get_property(unsigned int cpu, unsigned long input, freq = table[i].frequency; max_level++; } + + /* No valid cpu frequency entry */ + if (max_level == 0) + return -EINVAL; + /* max_level is an index, not a counter */ max_level--; |