msi: Assume a transform is applicable if it doesn't specify any products.

dlls/msi/patch.c

@@ -44,22 +44,22 @@ static BOOL match_language( MSIPACKAGE *package, LANGID langid )
     return FALSE;
 }
 
-static UINT check_transform_applicable( MSIPACKAGE *package, IStorage *patch )
+static UINT check_transform_applicable( MSIPACKAGE *package, IStorage *transform )
 {
-    LPWSTR prod_code, patch_product, template = NULL;
+    WCHAR *package_product, *transform_product, *template = NULL;
     UINT ret = ERROR_FUNCTION_FAILED;
 
-    prod_code = msi_dup_property( package->db, szProductCode );
-    patch_product = msi_get_suminfo_product( patch );
+    package_product = msi_dup_property( package->db, szProductCode );
+    transform_product = msi_get_suminfo_product( transform );
 
-    TRACE("db = %s patch = %s\n", debugstr_w(prod_code), debugstr_w(patch_product));
+    TRACE("package = %s transform = %s\n", debugstr_w(package_product), debugstr_w(transform_product));
 
-    if (strstrW( patch_product, prod_code ))
+    if (!transform_product || strstrW( transform_product, package_product ))
     {
         MSISUMMARYINFO *si;
         const WCHAR *p;
 
-        si = MSI_GetSummaryInformationW( patch, 0 );
+        si = MSI_GetSummaryInformationW( transform, 0 );
         if (!si)
         {
             ERR("no summary information!\n");
@@ -90,8 +90,8 @@ static UINT check_transform_applicable( MSIPACKAGE *package, IStorage *patch )
     }
 
 end:
-    msi_free( patch_product );
-    msi_free( prod_code );
+    msi_free( transform_product );
+    msi_free( package_product );
     msi_free( template );
     return ret;
 }