From patchwork Tue Jan 10 03:12:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miles Chen X-Patchwork-Id: 13094624 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 17250C54EBC for ; Tue, 10 Jan 2023 03:14:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=66UmUTpMy6Y3ykMPjL7hwe7z/Ze98JVKI+oI6Y7mWTY=; b=AnW8/rC2/i83/E oZKygtLfX1Hjo7IYTpdIeFyAGrVjIEdVgJgcd5n46+j32mbmccl/t5PbXYFoX7kaW3Ot4WcGKbPbc Dr88KAq1q0Uycknhug7tnXWm3kkDqwjIFcIcYPu2/GGLf+u5HWro03mfPJUNIMLW1uvl8R1UpEfBe mlF4XVSoWnC6Hxd4XDFzDO5QHETMfr2ZUh1fNpaY8rqZ68TyVMdeHErlVLYgeAe+ZL4qZrOURDZIL x0Hm0agA4X8sWKEN2ffkF8g/zFJxqSKXHY/VC59F7HC0PPqJFXPxc6byv2PE8cvdemnzyX9yA39Fp FPQ+klH6FGME4TvcaMGw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pF54X-0053Uo-4d; Tue, 10 Jan 2023 03:13:09 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pF54T-0053Tk-Dy; Tue, 10 Jan 2023 03:13:07 +0000 X-UUID: 9391b4d59178477abce637c6ebe74d77-20230109 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=FIej2eD4SEujFQBxd08bv8HhsKCLd7iptP8Lr3bnREU=; b=lNWukquaZDMkwy2OJMn2kO78RpWer59GTrvaT6lS4u4ki1Q39d8/HUx7FEYUeS+CgseSf2HKRbgNPCIRqBNICDiz2tLWmmqhMrlcOx+UHdIosnDKGeumCEI7wKn+4x5PLus2F7BGpxqaCnYJzz1LfYHWKTGSfM+7N3PTPFeAVSY=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.17,REQID:805f2e6c-c5f5-40df-9ee1-9f5b56110fa8,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:543e81c,CLOUDID:9c4156f5-ff42-4fb0-b929-626456a83c14,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0 X-CID-BVR: 0,NGT X-UUID: 9391b4d59178477abce637c6ebe74d77-20230109 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1864520102; Mon, 09 Jan 2023 20:12:48 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.15; Tue, 10 Jan 2023 11:12:24 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Tue, 10 Jan 2023 11:12:24 +0800 From: Miles Chen To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Matthias Brugger CC: , Miles Chen , , , Subject: [PATCH] drm/mediatek: stop using 0 as NULL pointer Date: Tue, 10 Jan 2023 11:12:21 +0800 Message-ID: <20230110031223.4820-1-miles.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230109_191305_481380_0A85B003 X-CRM114-Status: GOOD ( 11.11 ) 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 Use NULL for NULL pointer to fix the following sparse warning: drivers/gpu/drm/mediatek/mtk_drm_gem.c:265:27: sparse: warning: Using plain integer as NULL pointer Signed-off-by: Miles Chen Reviewed-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 47e96b0289f9..06aadd5e7f5b 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -262,6 +262,6 @@ void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj, return; vunmap(vaddr); - mtk_gem->kvaddr = 0; + mtk_gem->kvaddr = NULL; kfree(mtk_gem->pages); }