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Subject[PATCH] cpufreq: intel_pstate: Fix static checker warning for epp variable
Fix warning for:
drivers/cpufreq/intel_pstate.c:731 store_energy_performance_preference()
error: uninitialized symbol 'epp'.

This warning is for a case, when energy_performance_preference attribute
matches pre defined strings. In this case the value of raw epp will not
be used to set EPP bits in MSR_HWP_REQUEST. So initializing with any
value is fine.

Reported-by: Dan Carpenter <>
Signed-off-by: Srinivas Pandruvada <>
This patch is on top of bleed-edge branch at

drivers/cpufreq/intel_pstate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 44c7b4677675..94cd07678ee3 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -709,7 +709,7 @@ static ssize_t store_energy_performance_preference(
struct cpudata *cpu_data = all_cpu_data[policy->cpu];
char str_preference[21];
bool raw = false;
- u32 epp;
+ u32 epp = 0;
int ret;

ret = sscanf(buf, "%20s", str_preference);
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