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[CLASS2]: Set DiskSize member of deviceExtension->DiskGeometry in ScsiClassReadDriveCapacity(). Consolidate code and comment for setting media capacity in bytes. CORE-17166

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Trevor Thompson 2020-07-20 14:55:24 -04:00 committed by Victor Perevertkin
parent a3669fdef7
commit b338fb7beb
1 changed files with 7 additions and 6 deletions
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13
drivers/storage/class/class2/class2.c
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@ -827,20 +827,20 @@ Retry:
DebugPrint((2,"SCSI ScsiClassReadDriveCapacity: Number of Sectors is %d\n", DebugPrint((2,"SCSI ScsiClassReadDriveCapacity: Number of Sectors is %d\n",
lastSector + 1)); lastSector + 1));
//
// Calculate media capacity in bytes.
//
deviceExtension->PartitionLength.QuadPart = (LONGLONG)(lastSector + 1);
// //
// Calculate number of cylinders. // Calculate number of cylinders.
// //
deviceExtension->DiskGeometry->Geometry.Cylinders.QuadPart = (LONGLONG)((lastSector + 1)/(DEFAULT_SECTORS_PER_TRACK * DEFAULT_TRACKS_PER_CYLINDER)); deviceExtension->DiskGeometry->Geometry.Cylinders.QuadPart = (LONGLONG)((lastSector + 1)/(DEFAULT_SECTORS_PER_TRACK * DEFAULT_TRACKS_PER_CYLINDER));
//
// Calculate media capacity in bytes.
//
deviceExtension->PartitionLength.QuadPart = (LONGLONG)(lastSector + 1);
deviceExtension->PartitionLength.QuadPart = deviceExtension->PartitionLength.QuadPart =
(deviceExtension->PartitionLength.QuadPart << deviceExtension->SectorShift); (deviceExtension->PartitionLength.QuadPart << deviceExtension->SectorShift);
deviceExtension->DiskGeometry->DiskSize.QuadPart = deviceExtension->PartitionLength.QuadPart;
if (DeviceObject->Characteristics & FILE_REMOVABLE_MEDIA) { if (DeviceObject->Characteristics & FILE_REMOVABLE_MEDIA) {
@ -903,6 +903,7 @@ Retry:
deviceExtension->DiskGeometry->Geometry.BytesPerSector = 512; deviceExtension->DiskGeometry->Geometry.BytesPerSector = 512;
deviceExtension->SectorShift = 9; deviceExtension->SectorShift = 9;
deviceExtension->PartitionLength.QuadPart = (LONGLONG) 0; deviceExtension->PartitionLength.QuadPart = (LONGLONG) 0;
deviceExtension->DiskGeometry->DiskSize.QuadPart = (LONGLONG) 0;
if (DeviceObject->Characteristics & FILE_REMOVABLE_MEDIA) { if (DeviceObject->Characteristics & FILE_REMOVABLE_MEDIA) {