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Thermal cpu cooling: return error if no valid cpu frequency entry

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Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Zhang Rui 2014-01-02 11:57:48 +08:00
parent 1c9573a40c
commit a116776f7b
1 changed files with 5 additions and 0 deletions
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5
drivers/thermal/cpu_cooling.c
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@ -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--;