From patchwork Mon Oct 28 13:39:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steffen Dirkwinkel X-Patchwork-Id: 13853475 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CA047D33981 for ; Mon, 28 Oct 2024 13:42:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=GuPaYH7muQ+6E50D/hZ/FPeAmhYFh1B9WY+/CGXP/jw=; b=D++qbGJjIGpLQChb8Dety4nE+u i/JNhcqETADQMIOLQwJhRNjioo/JaSgFi8e3TnrAjjfGRzaIDnJP7ig7HopODLJL90Y0sgDBu1ciI Bmrjd4tsX+qrJcMs5uYRVPAMUjv971bGsYXE1w6T/VXsZnIJrlJwgrwaUdbhrCeyxyC7X4eJsHUYC HWUg/UTNvS9YhXUcExoFo9yrvMdGOuINnScYqIAdM4ej7LeG4KCU26RsoRmLnJv1y6khgOL2KQJaN vt7Pt4deKKUhxXUHyTfkQk9P+ySXMaHQbJkJtNK0UO5AecyPKQYPnHZn6DM/Ue3xCMv1oXhfpPIrH g2g+rnfQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t5Q0p-0000000AxuJ-05YA; Mon, 28 Oct 2024 13:42:27 +0000 Received: from mout-p-102.mailbox.org ([80.241.56.152]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t5PzD-0000000AxiD-1Paj for linux-arm-kernel@lists.infradead.org; Mon, 28 Oct 2024 13:40:49 +0000 Received: from smtp2.mailbox.org (smtp2.mailbox.org [IPv6:2001:67c:2050:b231:465::2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-102.mailbox.org (Postfix) with ESMTPS id 4XcZK75skPz9skW; Mon, 28 Oct 2024 14:40:43 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=steffen.cc; s=MBO0001; t=1730122843; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=GuPaYH7muQ+6E50D/hZ/FPeAmhYFh1B9WY+/CGXP/jw=; b=JGmD6ePJLdyNqUmEpNYA5tmL7WTHmkPHpPd+WNxAMn3lX0JLJJmqz0Flwg/0FBdcX9jShB ioumr8aoo8JhrZY8ky2obBNuGIDsUiHWFpCYZ1EfSEyBgWSwUdTo9Co4MVuaGpmZWDxdiy Ez2ttjEQYEgkqrWs3Uhq+6+lJzQkk/nhGcngAVGinQjCygmRXvPy7NfrU46wDcOlQ7fpo8 ExjJmnyrckkz/NQocmuZifI2zzGxQReQAFbrEn6W4ameGg7VP+i2qMva9GRuxGPZbw53to aSDDEm+W3+sXw9QMMcdOwttxGomeTvwWx0sbjzx1MNIwi6B8wRxobTMN+iXm+A== From: Steffen Dirkwinkel To: dri-devel@lists.freedesktop.org, Laurent Pinchart , Tomi Valkeinen , Anatoliy Klymenko Cc: Steffen Dirkwinkel , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Michal Simek , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2] drm: xlnx: zynqmp_disp: layer may be null while releasing Date: Mon, 28 Oct 2024 14:39:40 +0100 Message-ID: <20241028133941.54264-1-lists@steffen.cc> In-Reply-To: <79aca344-b27e-4b77-aa92-6e4c079486e0@ideasonboard.com> References: <79aca344-b27e-4b77-aa92-6e4c079486e0@ideasonboard.com> MIME-Version: 1.0 X-Rspamd-Queue-Id: 4XcZK75skPz9skW X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241028_064047_675264_2E6A37EC X-CRM114-Status: GOOD ( 11.76 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Steffen Dirkwinkel layer->info can be null if we have an error on the first layer in zynqmp_disp_create_layers Fixes: 1836fd5ed98d ("drm: xlnx: zynqmp_dpsub: Minimize usage of global flag") Signed-off-by: Steffen Dirkwinkel --- drivers/gpu/drm/xlnx/zynqmp_disp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/xlnx/zynqmp_disp.c b/drivers/gpu/drm/xlnx/zynqmp_disp.c index 9368acf56eaf..e4e0e299e8a7 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_disp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c @@ -1200,6 +1200,9 @@ static void zynqmp_disp_layer_release_dma(struct zynqmp_disp *disp, { unsigned int i; + if (!layer->info) + return; + for (i = 0; i < layer->info->num_channels; i++) { struct zynqmp_disp_layer_dma *dma = &layer->dmas[i];