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- Fix mdl probe access rights
svn path=/trunk/; revision=49336
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@ -724,7 +724,16 @@ ProbeMdl:
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Mdl = Irp->MdlAddress;
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/* determine operation */
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Operation = (ProbeFlags & KSPROBE_STREAMWRITE) ? IoWriteAccess : IoReadAccess;
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if (!(ProbeFlags & KSPROBE_STREAMWRITE) || (ProbeFlags & KSPROBE_MODIFY))
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{
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/* operation is read / modify stream, need write access */
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Operation = IoWriteAccess;
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}
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else
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{
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/* operation is write to device, so we need read access */
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Operation = IoReadAccess;
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}
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do
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{
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@ -859,7 +868,8 @@ ProbeMdl:
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if (StreamHeader->FrameExtent)
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{
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/* allocate an mdl */
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Mdl = IoAllocateMdl(StreamHeader->Data, StreamHeader->FrameExtent, Irp->MdlAddress != NULL, TRUE, Irp);
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ASSERT(Irp->MdlAddress == NULL);
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Mdl = IoAllocateMdl(StreamHeader->Data, StreamHeader->FrameExtent, FALSE, TRUE, Irp);
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if (!Mdl)
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{
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/* not enough memory */
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