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| author | Shenglei Zhang <shenglei.zhang@intel.com> | 2019-10-15 10:06:42 +0800 |
|---|---|---|
| committer | Liming Gao <liming.gao@intel.com> | 2019-11-04 08:56:12 +0800 |
| commit | a857ea4199ead1858e55b081fea38fcf0e721c8c (patch) | |
| tree | 8b9f51efbd516b95648819028338bc909360fbdf | |
| parent | 7a2505bb0f64a266002737ea8446f14cc4095a22 (diff) | |
| download | edk2-a857ea4199ead1858e55b081fea38fcf0e721c8c.tar.gz edk2-a857ea4199ead1858e55b081fea38fcf0e721c8c.tar.bz2 edk2-a857ea4199ead1858e55b081fea38fcf0e721c8c.zip | |
MdeModulePkg/UhciPei: Initialize the variable RequestMap
RequestMap is used but not Initialized.
RequestMap is called by UhciMapUserRequest, in which RequestMap(Map)
is called by IoMmuMap, and is finally called by IoMmu->Map.
We can not assume RequestMap is given an initial value at any step.
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
| -rw-r--r-- | MdeModulePkg/Bus/Pci/UhciPei/UhcPeim.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Pci/UhciPei/UhcPeim.c b/MdeModulePkg/Bus/Pci/UhciPei/UhcPeim.c index b897c3f82c..a05834da3c 100644 --- a/MdeModulePkg/Bus/Pci/UhciPei/UhcPeim.c +++ b/MdeModulePkg/Bus/Pci/UhciPei/UhcPeim.c @@ -274,6 +274,8 @@ UhcControlTransfer ( PktID = INPUT_PACKET_ID;
+ RequestMap = NULL;
+
if (Request == NULL || TransferResult == NULL) {
return EFI_INVALID_PARAMETER;
}
|