From patchwork Mon Sep 13 13:14:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 510597 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EC68CC433F5 for ; Mon, 13 Sep 2021 14:10:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D87B160F0F for ; Mon, 13 Sep 2021 14:10:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242631AbhIMOMD (ORCPT ); Mon, 13 Sep 2021 10:12:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:59948 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345158AbhIMOKB (ORCPT ); Mon, 13 Sep 2021 10:10:01 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id BC260613DA; Mon, 13 Sep 2021 13:41:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1631540509; bh=l/Xpl2qhOTIDjKOxOrGc8J1pvnpinX1zH4ibSLKWbPA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BZjP73CsDfxo5qZQK1+flQntZTfDgkqXs4aBp4OwX8f4VN/4KBk/GWKoKLtSe+5FX B8zItvp/cLIjc3cdBjZXiHZHBcBfh+wwrXtfZjCkGQsfeziLK6CKdquHV/O7q4DFfi q02pKuK728vHPfs78J04KkBbnb9E5XQttnq79E98= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Marc Kleine-Budde , Greg Ungerer , Sasha Levin Subject: [PATCH 5.13 222/300] m68k: coldfire: return success for clk_enable(NULL) Date: Mon, 13 Sep 2021 15:14:43 +0200 Message-Id: <20210913131116.856268391@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210913131109.253835823@linuxfoundation.org> References: <20210913131109.253835823@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dan Carpenter [ Upstream commit f6a4f0b424df957d84fa7b9f2d02981234ff5828 ] The clk_enable is supposed work when CONFIG_HAVE_CLK is false, but it returns -EINVAL. That means some drivers fail during probe. [ 1.680000] flexcan: probe of flexcan.0 failed with error -22 Fixes: c1fb1bf64bb6 ("m68k: let clk_enable() return immediately if clk is NULL") Fixes: bea8bcb12da0 ("m68knommu: Add support for the Coldfire m5441x.") Signed-off-by: Dan Carpenter Acked-by: Marc Kleine-Budde Signed-off-by: Greg Ungerer Signed-off-by: Sasha Levin --- arch/m68k/coldfire/clk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/m68k/coldfire/clk.c b/arch/m68k/coldfire/clk.c index 076a9caa9557..c895a189c5ae 100644 --- a/arch/m68k/coldfire/clk.c +++ b/arch/m68k/coldfire/clk.c @@ -92,7 +92,7 @@ int clk_enable(struct clk *clk) unsigned long flags; if (!clk) - return -EINVAL; + return 0; spin_lock_irqsave(&clk_lock, flags); if ((clk->enabled++ == 0) && clk->clk_ops)