From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11547C433EF for ; Mon, 25 Oct 2021 19:20:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F07F4610D2 for ; Mon, 25 Oct 2021 19:19:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233049AbhJYTWU (ORCPT ); Mon, 25 Oct 2021 15:22:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:38138 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234550AbhJYTVC (ORCPT ); Mon, 25 Oct 2021 15:21:02 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7D900610CF; Mon, 25 Oct 2021 19:18:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1635189519; bh=mHL1+/sGFYkWBjJdyj/s4p2sjcui4IVOvEEToKqYAoA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xDjj/hNqkZraxTv1hu5jgfLLU+5kMHkKNjDa5xS88CpRrGZrauJ4KEcaI+AqGo4RY ZYZ5gGegKhXiuz8HYGJQf1/oeqlkrWb+n+EBwEeZDZiN4T33YlfTKd/quU8OqV1vqR +an86IIKp03X6WN5AnjAR8OcnUKr0pJMAHap4uPQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Dmitry Baryshkov , Rob Clark Subject: [PATCH 4.9 24/50] drm/msm/dsi: fix off by one in dsi_bus_clk_enable error handling Date: Mon, 25 Oct 2021 21:14:11 +0200 Message-Id: <20211025190937.555999473@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211025190932.542632625@linuxfoundation.org> References: <20211025190932.542632625@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dan Carpenter commit c8f01ffc83923a91e8087aaa077de13354a7aa59 upstream. This disables a lock which wasn't enabled and it does not disable the first lock in the array. Fixes: 6e0eb52eba9e ("drm/msm/dsi: Parse bus clocks from a list") Signed-off-by: Dan Carpenter Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20211001123409.GG2283@kili Signed-off-by: Dmitry Baryshkov Signed-off-by: Rob Clark Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -439,7 +439,7 @@ static int dsi_bus_clk_enable(struct msm return 0; err: - for (; i > 0; i--) + while (--i >= 0) clk_disable_unprepare(msm_host->bus_clks[i]); return ret;