parse/language: ensure parse stack is unwound

handleEndBlockContent invokes handleBlockContent to flush through
any pending tokens before unwinding the parse stack.  The flush
may fail, but the stack unwinding wants to happen anyway, so
ensure that it does before returning the original result.

Author: jmb202

src/parse/language.c

@@ -762,9 +762,6 @@ css_error handleEndBlockContent(css_language *c, const parserutils_vector *vecto
 	 * tokens we have left
 	 */
 	ret = handleBlockContent(c, vector);
-	if (ret != CSS_OK) {
-		return ret;
-	}
 
 	/* Our goal here is to ensure that the language parse stack is in the
 	 * right state.  We've encountered the end of a BlockContent such as
@@ -783,7 +780,7 @@ css_error handleEndBlockContent(css_language *c, const parserutils_vector *vecto
 		entry = parserutils_stack_get_current(c->context);
 	}
 
-	return CSS_OK;
+	return ret;
 }
 
 css_error handleDeclaration(css_language *c, const parserutils_vector *vector)