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UefiCpuPkg: Fix conditionally uninitialized variables

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Fixes CodeQL alerts for CWE-457:
https://cwe.mitre.org/data/definitions/457.html

Cc: Eric Dong <eric.dong@intel.com>
Cc: Erich McMillan <emcmillan@microsoft.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Michael Kubacki <mikuback@linux.microsoft.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Co-authored-by: Erich McMillan <emcmillan@microsoft.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Oliver Smith-Denny <osd@smith-denny.com>
This commit is contained in:
Michael Kubacki
2022-11-08 15:37:38 -05:00
committed by mergify[bot]
parent 11dd44dfbe
commit e03657dca8
3 changed files with 22 additions and 3 deletions
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8
UefiCpuPkg/CpuMpPei/CpuMpPei.c
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@@ -473,7 +473,13 @@ InitializeMpExceptionStackSwitchHandlers (
return;
}
MpInitLibGetNumberOfProcessors (&NumberOfProcessors, NULL);
Status = MpInitLibGetNumberOfProcessors (&NumberOfProcessors, NULL);
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR (Status)) {
NumberOfProcessors = 1;
}
SwitchStackData = AllocatePages (EFI_SIZE_TO_PAGES (NumberOfProcessors * sizeof (EXCEPTION_STACK_SWITCH_CONTEXT)));
ASSERT (SwitchStackData != NULL);
ZeroMem (SwitchStackData, NumberOfProcessors * sizeof (EXCEPTION_STACK_SWITCH_CONTEXT));