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[SETUPAPI] SetupDiCallClassInstaller: Use the class GUID enclosed in curly brackets as a sub key name to retrieve the class co-installer.

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This commit is contained in:
Eric Kohl 2018-05-12 12:42:56 +02:00
parent abf9bd2d68
commit 35bd6571bd
1 changed files with 4 additions and 5 deletions
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9
dll/win32/setupapi/devinst.c
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@ -4288,16 +4288,16 @@ BOOL WINAPI SetupDiCallClassInstaller(
&hKey); &hKey);
if (rc == ERROR_SUCCESS) if (rc == ERROR_SUCCESS)
{ {
LPWSTR lpGuidString; WCHAR szGuidString[40];
if (UuidToStringW((UUID*)&DeviceInfoData->ClassGuid, &lpGuidString) == RPC_S_OK) if (pSetupStringFromGuid(&DeviceInfoData->ClassGuid, szGuidString, ARRAYSIZE(szGuidString)) == ERROR_SUCCESS)
{ {
rc = RegQueryValueExW(hKey, lpGuidString, NULL, &dwRegType, NULL, &dwLength); rc = RegQueryValueExW(hKey, szGuidString, NULL, &dwRegType, NULL, &dwLength);
if (rc == ERROR_SUCCESS && dwRegType == REG_MULTI_SZ) if (rc == ERROR_SUCCESS && dwRegType == REG_MULTI_SZ)
{ {
LPWSTR KeyBuffer = HeapAlloc(GetProcessHeap(), 0, dwLength); LPWSTR KeyBuffer = HeapAlloc(GetProcessHeap(), 0, dwLength);
if (KeyBuffer != NULL) if (KeyBuffer != NULL)
{ {
rc = RegQueryValueExW(hKey, lpGuidString, NULL, NULL, (LPBYTE)KeyBuffer, &dwLength); rc = RegQueryValueExW(hKey, szGuidString, NULL, NULL, (LPBYTE)KeyBuffer, &dwLength);
if (rc == ERROR_SUCCESS) if (rc == ERROR_SUCCESS)
{ {
LPWSTR ptr; LPWSTR ptr;
@ -4319,7 +4319,6 @@ BOOL WINAPI SetupDiCallClassInstaller(
HeapFree(GetProcessHeap(), 0, KeyBuffer); HeapFree(GetProcessHeap(), 0, KeyBuffer);
} }
} }
RpcStringFreeW(&lpGuidString);
} }
RegCloseKey(hKey); RegCloseKey(hKey);
} }