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hidclass: Improve error handling in get_device_id.

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Do not assume the underlying driver will return meaningful data, as it
may not support BusQueryContainerID which will be queried in a next commit.
This commit is contained in:
Claire Girka 2022-07-12 12:22:43 +02:00 committed by Alexandre Julliard
parent d930a0cc5e
commit 8ed6b1609c
1 changed files with 7 additions and 2 deletions
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9
dlls/hidclass.sys/pnp.c
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@ -84,11 +84,16 @@ static NTSTATUS get_device_id(DEVICE_OBJECT *device, BUS_QUERY_ID_TYPE type, WCH
irpsp->MinorFunction = IRP_MN_QUERY_ID;
irpsp->Parameters.QueryId.IdType = type;
irp->IoStatus.Status = STATUS_NOT_SUPPORTED;
if (IoCallDriver(device, irp) == STATUS_PENDING)
KeWaitForSingleObject(&event, Executive, KernelMode, FALSE, NULL);
wcscpy(id, (WCHAR *)irp_status.Information);
ExFreePool((WCHAR *)irp_status.Information);
if (!irp_status.Status)
{
wcscpy(id, (WCHAR *)irp_status.Information);
ExFreePool((WCHAR *)irp_status.Information);
}
return irp_status.Status;
}