msi: Check a return value (clang).

diff --git a/dlls/msi/source.c b/dlls/msi/source.c
index 602f03fd0bbe6fbff01e19583f90c9e890e8b0fa..9b7a9ead3a5f3e298c992f1e61f825b04310da94 100644 (file)
--- a/dlls/msi/source.c
+++ b/dlls/msi/source.c
@@ -1130,6 +1130,12 @@ UINT WINAPI MsiSourceListAddSourceExW( LPCWSTR szProduct, LPCWSTR szUserSid,
         RegCloseKey(sourcekey);
         return ERROR_FUNCTION_FAILED;
     }
+    if (rc != ERROR_SUCCESS)
+    {
+        ERR("can't open subkey %u\n", rc);
+        RegCloseKey(sourcekey);
+        return rc;
+    }
 
     postfix = (dwOptions & MSISOURCETYPE_NETWORK) ? szBackSlash : szForwardSlash;
     if (szSource[lstrlenW(szSource) - 1] == *postfix)