The new VS2012 build failure is caused by 7a0df26.
xxx\registercpufeatureslib\dxeregistercpufeatureslib.c(258) :
warning C4701: potentially uninitialized local variable 'MpEvent' used
It is a false positive alarm.
MpEvent is assigned at line 238 and will be used at line 258, both
lines are controlled by "if (CpuFeaturesData->NumberOfCpus > 1)".
This patch initializes MpEvent to suppress incorrect compiler/analyzer
warnings.
Cc: Laszlo Ersek <ler...@redhat.com>
Cc: Eric Dong <eric.d...@intel.com>
Cc: Ray Ni <ray...@intel.com>
Cc: Dandan Bi <dandan...@intel.com>
Signed-off-by: Star Zeng <star.z...@intel.com>
---
.../RegisterCpuFeaturesLib/DxeRegisterCpuFeaturesLib.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git
a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/DxeRegisterCpuFeaturesLib.c
b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/DxeRegisterCpuFeaturesLib.c
index ffd99046a6cd..f87b2892aaae 100644
--- a/UefiCpuPkg/Library/RegisterCpuFeaturesLib/DxeRegisterCpuFeaturesLib.c
+++ b/UefiCpuPkg/Library/RegisterCpuFeaturesLib/DxeRegisterCpuFeaturesLib.c
@@ -229,6 +229,12 @@ CpuFeaturesInitialize (
OldBspNumber = GetProcessorIndex (CpuFeaturesData);
CpuFeaturesData->BspNumber = OldBspNumber;
+ //
+ //
+ // Initialize MpEvent to suppress incorrect compiler/analyzer warnings.
+ //
+ MpEvent = NULL;
+
if (CpuFeaturesData->NumberOfCpus > 1) {
Status = gBS->CreateEvent (
EVT_NOTIFY_WAIT,
--
2.21.0.windows.1
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