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-avoid dereferencing of NULL pointers

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svn path=/trunk/; revision=27473
This commit is contained in:
Christoph von Wittich 2007-07-08 13:38:08 +00:00
parent 7a7bdde4ec
commit 9be5d6e114
1 changed files with 10 additions and 1 deletions
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11
reactos/drivers/storage/scsiport/scsiport.c
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@ -3087,6 +3087,9 @@ SpiAdapterControl(PDEVICE_OBJECT DeviceObject,
/* Build the actual SG list */
while (TotalLength < Srb->DataTransferLength)
{
if (!ScatterGatherList)
break;
ScatterGatherList->Length = Srb->DataTransferLength - TotalLength;
ScatterGatherList->PhysicalAddress = IoMapTransfer(DeviceExtension->AdapterObject,
Irp->MdlAddress,
@ -3649,7 +3652,7 @@ SpiScanAdapter(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension)
/* Scan all logical units */
for (Lun = 0; Lun < SCSI_MAXIMUM_LOGICAL_UNITS; Lun++)
{
if (!LunExtension)
if ((!LunExtension) || (!LunInfo))
break;
/* Add extension to the list */
@ -3935,6 +3938,12 @@ SpiSendRequestSense(IN PSCSI_PORT_DEVICE_EXTENSION DeviceExtension,
TRUE,
TRUE);
if (!Srb)
{
DPRINT("SpiSendRequestSense() failed, Srb %p\n", Srb);
return;
}
IrpStack = IoGetNextIrpStackLocation(Irp);
IrpStack->MajorFunction = IRP_MJ_SCSI;