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 X-Spam-Level: X-Spam-Status: No, score=-15.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 5AE62C433E0 for ; Wed, 27 Jan 2021 14:23:32 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DC000207B7 for ; Wed, 27 Jan 2021 14:23:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC000207B7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 023396E5BB; Wed, 27 Jan 2021 14:23:31 +0000 (UTC) Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by gabe.freedesktop.org (Postfix) with ESMTPS id B4DE16E5BB for ; Wed, 27 Jan 2021 14:23:29 +0000 (UTC) Received: from [192.168.1.111] (91-157-208-71.elisa-laajakaista.fi [91.157.208.71]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 7F08D240; Wed, 27 Jan 2021 15:23:25 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1611757406; bh=yHssnq0BfnMXBckop2gm/NzN+62n1h1K6WDRQU6jT5c=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=OaAczokpnAaT3wyWGivHN9ZdCfnrY+1i7lifbfoUKA0X+9LRpjk+R0g/jVXX72EnW fC8M3lAwfPZ0VBV49FXYgV86zlLXZFDDtHrPl/U971xN+9Pio3Da3GWkUAalT72M1U yc3boxiEfq8bS94XYeb5avXoTKFb7o+WB9heNXBQ= Subject: Re: [PATCH v2] drm/omap: dsi: fix unreachable code in dsi_vc_send_short() To: menglong8.dong@gmail.com, sebastian.reichel@collabora.com References: <20210127015117.23267-1-dong.menglong@zte.com.cn> From: Tomi Valkeinen Autocrypt: addr=tomi.valkeinen@ideasonboard.com; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210127015117.23267-1-dong.menglong@zte.com.cn> Content-Language: en-US X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Menglong Dong , airlied@linux.ie, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, laurent.pinchart@ideasonboard.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 27/01/2021 03:51, menglong8.dong@gmail.com wrote: > From: Menglong Dong > > The 'r' in dsi_vc_send_short() is of type 'unsigned int', so the > 'r < 0' can't be true. > > Fix this by introducing a 'err' of type 'int' insteaded. > > Fixes: 1ed6253856cb ("drm/omap: dsi: switch dsi_vc_send_long/short to mipi_dsi_msg") > > Signed-off-by: Menglong Dong > Reviewed-by: Sebastian Reichel > --- > v2: > - remove word wrap in 'Fixes' tag > --- > drivers/gpu/drm/omapdrm/dss/dsi.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c > index 8e11612f5fe1..febcc87ddfe1 100644 > --- a/drivers/gpu/drm/omapdrm/dss/dsi.c > +++ b/drivers/gpu/drm/omapdrm/dss/dsi.c > @@ -2149,11 +2149,12 @@ static int dsi_vc_send_short(struct dsi_data *dsi, int vc, > const struct mipi_dsi_msg *msg) > { > struct mipi_dsi_packet pkt; > + int err; > u32 r; > > - r = mipi_dsi_create_packet(&pkt, msg); > - if (r < 0) > - return r; > + err = mipi_dsi_create_packet(&pkt, msg); > + if (err) > + return err; > > WARN_ON(!dsi_bus_is_locked(dsi)); > Thanks! I'll apply to drm-misc-next. Tomi _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel