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 68285C433EF for ; Mon, 13 Jun 2022 13:00:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356165AbiFMNAn (ORCPT ); Mon, 13 Jun 2022 09:00:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1358520AbiFMM7v (ORCPT ); Mon, 13 Jun 2022 08:59:51 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 232B71758D; Mon, 13 Jun 2022 04:17:56 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 5F07860B60; Mon, 13 Jun 2022 11:17:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 455CEC34114; Mon, 13 Jun 2022 11:17:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1655119075; bh=629SFRU7bdEcR8ppDMmOZ+gE7gENa3uY5h0drane660=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KG1DoggPtaBlRa+nUEjJMEJJodx2BvApWILEs8XyUIkoouaymGvAbFYzUfvQpNCUA T+4QUWsENeiQHu95Xn7WSs9hkGrdW+93zLcqjdgxZz0lRYJzsjZHGU4jSyl8MMFrw6 8QxobRhQtE79+SWFgAhK3ZpmPHNVN2okgrBH1IOw= 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 5.15 131/247] drm/bridge: ti-sn65dsi83: Handle dsi_lanes == 0 as invalid Date: Mon, 13 Jun 2022 12:10:33 +0200 Message-Id: <20220613094926.932783624@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220613094922.843438024@linuxfoundation.org> References: <20220613094922.843438024@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 bf469e8ac563..c901c0e1a3b0 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c @@ -608,7 +608,7 @@ 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