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[NTOS:PNP] PiSetDevNodeText: Do not overwrite existing DeviceDesc values

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CORE-17513
This commit is contained in:
Eric Kohl 2021-04-05 14:33:09 +02:00
parent badcfb2f7d
commit d8c38c4b4c
1 changed files with 2 additions and 2 deletions
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4
ntoskrnl/io/pnpmgr/devaction.c
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@ -1101,13 +1101,13 @@ PiSetDevNodeText(
return; return;
} }
// Step 1: write DeviceDesc key if not exists // Step 1: Write the DeviceDesc value if does not exist
UNICODE_STRING valDeviceDesc = RTL_CONSTANT_STRING(L"DeviceDesc"); UNICODE_STRING valDeviceDesc = RTL_CONSTANT_STRING(L"DeviceDesc");
ULONG len; ULONG len;
status = ZwQueryValueKey(InstanceKey, &valDeviceDesc, KeyValueBasicInformation, NULL, 0, &len); status = ZwQueryValueKey(InstanceKey, &valDeviceDesc, KeyValueBasicInformation, NULL, 0, &len);
if (!NT_SUCCESS(status)) if (status == STATUS_OBJECT_NAME_NOT_FOUND)
{ {
PWSTR deviceDesc = NULL; PWSTR deviceDesc = NULL;
status = PiIrpQueryDeviceText(DeviceNode, localeId, DeviceTextDescription, &deviceDesc); status = PiIrpQueryDeviceText(DeviceNode, localeId, DeviceTextDescription, &deviceDesc);