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sys: FspDeviceRelease: bug fix

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This commit is contained in:
Bill Zissimopoulos
2015-12-01 15:49:42 -08:00
parent 4f790f7b58
commit 0aad82d600
1 changed files with 5 additions and 3 deletions
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8
src/sys/device.c
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@@ -224,18 +224,20 @@ VOID FspDeviceRelease(PDEVICE_OBJECT DeviceObject)
{
// !PAGED_CODE();
BOOLEAN Result;
BOOLEAN Delete = FALSE;
FSP_DEVICE_EXTENSION *DeviceExtension;
KIRQL Irql;
DeviceExtension = FspDeviceExtension(DeviceObject);
KeAcquireSpinLock(&DeviceExtension->SpinLock, &Irql);
if (0 != DeviceExtension->RefCount)
{
DeviceExtension->RefCount--;
Result = 0 != DeviceExtension->RefCount;
Delete = 0 == DeviceExtension->RefCount;
}
KeReleaseSpinLock(&DeviceExtension->SpinLock, Irql);
if (!Result)
if (Delete)
FspDeviceDelete(DeviceObject);
}