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 E1BB7C2BB3F for ; Wed, 15 Nov 2023 19:41:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234936AbjKOTlp (ORCPT ); Wed, 15 Nov 2023 14:41:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39164 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234941AbjKOTlo (ORCPT ); Wed, 15 Nov 2023 14:41:44 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6C59519F for ; Wed, 15 Nov 2023 11:41:40 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DBDC4C433C7; Wed, 15 Nov 2023 19:41:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700077300; bh=FaBlZAID91PfdjFjjhnwb/vlOo0nT/mx96Zhf1XOimQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=owJxa7Nw1HXz2I1AWZIT7fY+myAqzsAUzRpOnnhS/zovat/HCmM+/P8k7xmDmAhgr 5+3nWsvwKhs3mdy8ZaTFh7TgMdjFJdMpNOXNGcB+eDVL4iLceDGC8k53RJQr9bjUSM zKHUiV2cAFvBUs5ju1sOzFtjPaoyJ5txR6Jsip74= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jonas Karlman , Sascha Hauer , Heiko Stuebner , Sasha Levin Subject: [PATCH 6.6 219/603] drm/rockchip: vop: Fix call to crtc reset helper Date: Wed, 15 Nov 2023 14:12:44 -0500 Message-ID: <20231115191628.443782965@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115191613.097702445@linuxfoundation.org> References: <20231115191613.097702445@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jonas Karlman [ Upstream commit 5aacd290837828c089a83ac9795c74c4c9e2c923 ] Allocation of crtc_state may fail in vop_crtc_reset, causing an invalid pointer to be passed to __drm_atomic_helper_crtc_reset. Fix this by adding a NULL check of crtc_state, similar to other drivers. Fixes: 01e2eaf40c9d ("drm/rockchip: Convert to using __drm_atomic_helper_crtc_reset() for reset.") Signed-off-by: Jonas Karlman Reviewed-by: Sascha Hauer Signed-off-by: Heiko Stuebner Link: https://patchwork.freedesktop.org/patch/msgid/20230621223311.2239547-4-jonas@kwiboo.se Signed-off-by: Sasha Levin --- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 06f647a20fe44..41cd12d5f2fa2 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1640,7 +1640,10 @@ static void vop_crtc_reset(struct drm_crtc *crtc) if (crtc->state) vop_crtc_destroy_state(crtc, crtc->state); - __drm_atomic_helper_crtc_reset(crtc, &crtc_state->base); + if (crtc_state) + __drm_atomic_helper_crtc_reset(crtc, &crtc_state->base); + else + __drm_atomic_helper_crtc_reset(crtc, NULL); } #ifdef CONFIG_DRM_ANALOGIX_DP -- 2.42.0