Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751530AbdGRKRt (ORCPT ); Tue, 18 Jul 2017 06:17:49 -0400 Received: from mail-wr0-f194.google.com ([209.85.128.194]:34998 "EHLO mail-wr0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751455AbdGRKRo (ORCPT ); Tue, 18 Jul 2017 06:17:44 -0400 From: Jonas Gorski Cc: Steven Miao , Masahiro Yamada , Andrew Morton , adi-buildroot-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: [PATCH 3/9] blackfin: bf609: allow NULL clock for clk_get_rate Date: Tue, 18 Jul 2017 12:17:24 +0200 Message-Id: <20170718101730.2541-4-jonas.gorski@gmail.com> X-Mailer: git-send-email 2.13.2 In-Reply-To: <20170718101730.2541-1-jonas.gorski@gmail.com> References: <20170718101730.2541-1-jonas.gorski@gmail.com> To: unlisted-recipients:; (no To-header on input) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1112 Lines: 31 Make the behaviour of clk_get_rate consistent with common clk's clk_get_rate by accepting NULL clocks as parameter. Some device drivers rely on this, and will cause an OOPS otherwise. Fixes: 969003152aa9 ("blackfin: bf60x: add clock support") Cc: Steven Miao Cc: Masahiro Yamada Cc: Andrew Morton Cc: adi-buildroot-devel@lists.sourceforge.net Cc: linux-kernel@vger.kernel.org Reported-by: Mathias Kresin Signed-off-by: Jonas Gorski --- arch/blackfin/mach-bf609/clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/blackfin/mach-bf609/clock.c b/arch/blackfin/mach-bf609/clock.c index 392a59b9a504..21a0ec18829f 100644 --- a/arch/blackfin/mach-bf609/clock.c +++ b/arch/blackfin/mach-bf609/clock.c @@ -109,7 +109,7 @@ EXPORT_SYMBOL(clk_disable); unsigned long clk_get_rate(struct clk *clk) { unsigned long ret = 0; - if (clk->ops && clk->ops->get_rate) + if (clk && clk->ops && clk->ops->get_rate) ret = clk->ops->get_rate(clk); return ret; } -- 2.11.0