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Add parameter checking for PCI IO protocol according to UEFI spec.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5359 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
xli24 2008-06-21 11:16:36 +00:00
parent acbbe34e7b
commit 9a2d4fe9a7
1 changed files with 17 additions and 1 deletions
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18
IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciIo.c
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@ -1,7 +1,7 @@
/**@file /**@file
Implement all interfaces for EFI_PCI_IO_PROTOCOL. Implement all interfaces for EFI_PCI_IO_PROTOCOL.
Copyright (c) 2006, Intel Corporation Copyright (c) 2006 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at which accompanies this distribution. The full text of the license may be found at
@ -379,6 +379,10 @@ PciIoMemRead (
return EFI_INVALID_PARAMETER; return EFI_INVALID_PARAMETER;
} }
if (Buffer == NULL) {
return EFI_INVALID_PARAMETER;
}
Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeMem, Width, Count, &Offset); Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeMem, Width, Count, &Offset);
if (EFI_ERROR (Status)) { if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED; return EFI_UNSUPPORTED;
@ -439,6 +443,10 @@ PciIoMemWrite (
return EFI_INVALID_PARAMETER; return EFI_INVALID_PARAMETER;
} }
if (Buffer == NULL) {
return EFI_INVALID_PARAMETER;
}
Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeMem, Width, Count, &Offset); Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeMem, Width, Count, &Offset);
if (EFI_ERROR (Status)) { if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED; return EFI_UNSUPPORTED;
@ -499,6 +507,10 @@ PciIoIoRead (
return EFI_INVALID_PARAMETER; return EFI_INVALID_PARAMETER;
} }
if (Buffer == NULL) {
return EFI_INVALID_PARAMETER;
}
Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeIo, Width, Count, &Offset); Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeIo, Width, Count, &Offset);
if (EFI_ERROR (Status)) { if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED; return EFI_UNSUPPORTED;
@ -559,6 +571,10 @@ PciIoIoWrite (
return EFI_INVALID_PARAMETER; return EFI_INVALID_PARAMETER;
} }
if (Buffer == NULL) {
return EFI_INVALID_PARAMETER;
}
Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeIo, Width, Count, &Offset); Status = PciIoVerifyBarAccess (PciIoDevice, BarIndex, PciBarTypeIo, Width, Count, &Offset);
if (EFI_ERROR (Status)) { if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED; return EFI_UNSUPPORTED;