msi: Fix a couple of leaks (coverity).

dlls/msi/files.c

@@ -336,7 +336,8 @@ UINT ACTION_InstallFiles(MSIPACKAGE *package)
         if (rc != ERROR_SUCCESS)
         {
             ERR("Unable to load media info for %s (%u)\n", debugstr_w(file->File), rc);
-            return ERROR_FUNCTION_FAILED;
+            rc = ERROR_FUNCTION_FAILED;
+            goto done;
         }
         if (!file->Component->Enabled) continue;
 
@@ -513,7 +514,8 @@ UINT ACTION_PatchFiles( MSIPACKAGE *package )
         if (rc != ERROR_SUCCESS)
         {
             ERR("Unable to load media info for %s (%u)\n", debugstr_w(file->File), rc);
-            return ERROR_FUNCTION_FAILED;
+            rc = ERROR_FUNCTION_FAILED;
+            goto done;
         }
         comp->Action = msi_get_component_action( package, comp );
         if (!comp->Enabled || comp->Action != INSTALLSTATE_LOCAL) continue;

dlls/msi/package.c

@@ -1567,13 +1567,17 @@ UINT MSI_OpenPackageW(LPCWSTR szPackage, MSIPACKAGE **pPackage)
         {
             r = msi_create_empty_local_file( localfile, dotmsi );
             if (r != ERROR_SUCCESS)
+            {
+                msi_free ( base_url );
                 return r;
+            }
 
             if (!CopyFileW( file, localfile, FALSE ))
             {
                 r = GetLastError();
                 WARN("unable to copy package %s to %s (%u)\n", debugstr_w(file), debugstr_w(localfile), r);
                 DeleteFileW( localfile );
+                msi_free ( base_url );
                 return r;
             }
             delete_on_close = TRUE;
@@ -1581,7 +1585,10 @@ UINT MSI_OpenPackageW(LPCWSTR szPackage, MSIPACKAGE **pPackage)
         TRACE("opening package %s\n", debugstr_w( localfile ));
         r = MSI_OpenDatabaseW( localfile, MSIDBOPEN_TRANSACT, &db );
         if (r != ERROR_SUCCESS)
+        {
+            msi_free ( base_url );
             return r;
+        }
     }
     package = MSI_CreatePackage( db, base_url );
     msi_free( base_url );