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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7271BC43334 for ; Mon, 13 Jun 2022 13:46:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378948AbiFMNqS (ORCPT ); Mon, 13 Jun 2022 09:46:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40996 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379716AbiFMNo5 (ORCPT ); Mon, 13 Jun 2022 09:44:57 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 58F8760F9; Mon, 13 Jun 2022 04:32:33 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id D738FB80EA7; Mon, 13 Jun 2022 11:32:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 24349C36B0C; Mon, 13 Jun 2022 11:32:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1655119950; bh=bA3XZbwpyv4CQAVMx82J1EfXcxqBdnROVcJ6m/OszZY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=j2QwM6Du1kajAeA4oT8iesbe9N+iqnnGiPOM+ogfIBOdfY46xHG4Mh/jouTNakYSQ f7PkU1fIeI6pyMN+lGKo+gQxe4/zUtOz2hWamsHmfmpiMU/3uiihd61eLwk917ANPG iR+Y9YUDKGLENHqlgRpsoM/Dx41SAOeWryrfI5Rs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Marek Vasut , Jonas Karlman , Laurent Pinchart , Lucas Stach , Maxime Ripard , Neil Armstrong , Robert Foss , Sam Ravnborg , Andrzej Hajda , Sasha Levin Subject: [PATCH 5.18 177/339] drm/bridge: ti-sn65dsi83: Handle dsi_lanes == 0 as invalid Date: Mon, 13 Jun 2022 12:10:02 +0200 Message-Id: <20220613094932.043629961@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220613094926.497929857@linuxfoundation.org> References: <20220613094926.497929857@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: stable@vger.kernel.org From: Marek Vasut [ Upstream commit edbc7960bef7fd71ef1e44d0df15b864784b14c8 ] Handle empty data-lanes = < >; property, which translates to dsi_lanes = 0 as invalid. Fixes: ceb515ba29ba6 ("drm/bridge: ti-sn65dsi83: Add TI SN65DSI83 and SN65DSI84 driver") Signed-off-by: Marek Vasut Cc: Jonas Karlman Cc: Laurent Pinchart Cc: Lucas Stach Cc: Marek Vasut Cc: Maxime Ripard Cc: Neil Armstrong Cc: Robert Foss Cc: Sam Ravnborg Reviewed-by: Andrzej Hajda Reviewed-by: Lucas Stach Link: https://patchwork.freedesktop.org/patch/msgid/20220518233844.248504-1-marex@denx.de Signed-off-by: Sasha Levin --- drivers/gpu/drm/bridge/ti-sn65dsi83.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c index 19daaddd29a4..3d58110465fe 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c @@ -573,7 +573,7 @@ static int sn65dsi83_parse_dt(struct sn65dsi83 *ctx, enum sn65dsi83_model model) ctx->host_node = of_graph_get_remote_port_parent(endpoint); of_node_put(endpoint); - if (ctx->dsi_lanes < 0 || ctx->dsi_lanes > 4) { + if (ctx->dsi_lanes <= 0 || ctx->dsi_lanes > 4) { ret = -EINVAL; goto err_put_node; } -- 2.35.1