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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 CB637FD0650 for ; Wed, 11 Mar 2026 08:04:48 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1AB5810E383; Wed, 11 Mar 2026 08:04:39 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=avm.de header.i=@avm.de header.b="OlBoHHpV"; dkim-atps=neutral Received: from mail.avm.de (mail.avm.de [212.42.244.94]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7613710E718; Tue, 10 Mar 2026 12:01:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=avm.de; s=mail; t=1773143726; bh=6EuXq65aclW87MvbjKpAiGhSvzG4CQReYSdgtvzfvbQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=OlBoHHpVof4NyozqV3vxjKcjvk/y17oYz+NX0GgTt5nMsrjzgfoQZCcD5nyMeqLWk htiyUI/wWJswuTU+8y83flTCS0RnzHoiIrK06LfnovJyy/ccZ/NhBYSEivcOaZTGCa Ux8J7cHyncVvErf5jzV1qMqauD0EUnF5+GejdCq4= Received: from [2001:bf0:244:244::71] (helo=mail.avm.de) by mail.avm.de with ESMTP (eXpurgate 4.55.2) (envelope-from ) id 69b006ae-e21d-7f0000032729-7f000001da2a-1 for ; Tue, 10 Mar 2026 12:55:26 +0100 Received: from mail-auth.avm.de (dovecot-mx-01.avm.de [IPv6:2001:bf0:244:244::71]) by mail.avm.de (Postfix) with ESMTPS; Tue, 10 Mar 2026 12:55:26 +0100 (CET) From: Philipp Hahn Date: Tue, 10 Mar 2026 12:49:03 +0100 Subject: [PATCH 37/61] drm: Prefer IS_ERR_OR_NULL over manual NULL check MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Message-Id: <20260310-b4-is_err_or_null-v1-37-bd63b656022d@avm.de> References: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de> In-Reply-To: <20260310-b4-is_err_or_null-v1-0-bd63b656022d@avm.de> To: amd-gfx@lists.freedesktop.org, apparmor@lists.ubuntu.com, bpf@vger.kernel.org, ceph-devel@vger.kernel.org, cocci@inria.fr, dm-devel@lists.linux.dev, dri-devel@lists.freedesktop.org, gfs2@lists.linux.dev, intel-gfx@lists.freedesktop.org, intel-wired-lan@lists.osuosl.org, iommu@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-block@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-clk@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org, linux-media@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, linux-mtd@lists.infradead.org, linux-nfs@vger.kernel.org, linux-omap@vger.kernel.org, linux-phy@lists.infradead.org, linux-pm@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-sctp@vger.kernel.org, linux-security-module@vger.kernel.org, linux-sh@vger.kernel.org, linux-sound@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-trace-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, ntfs3@lists.linux.dev, samba-technical@lists.samba.org, sched-ext@lists.linux.dev, target-devel@vger.kernel.org, tipc-discussion@lists.sourceforge.net, v9fs@lists.linux.dev, Philipp Hahn Cc: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Zhenyu Wang , Zhi Wang , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan X-Developer-Signature: v=1; a=openpgp-sha256; l=4819; i=phahn-oss@avm.de; h=from:subject:message-id; bh=6EuXq65aclW87MvbjKpAiGhSvzG4CQReYSdgtvzfvbQ=; b=owEBbQGS/pANAwAKATQtBlPRrKzbAcsmYgBpsAZT+7AKzVVh94OZwGC1ojred94HRoubB3Jj7 iZaELcQHomJATMEAAEKAB0WIQQ5bPBtrWDUcDQCppg0LQZT0ays2wUCabAGUwAKCRA0LQZT0ays 26wAB/9TBiS4XQT7vnGKfXiPWlqEeJl/SwNfE8gRd+LVLd2GPoXI77JKlqZA5KJHsuEaYytwRHj 0co7/mL9JXJHOUE/UPYXt3qFrwRsleM7nnJK7ysqo/nuMkL1zXCK+fpnqQpoBiKUkPJFjSSQWWs A0qg0NaHPa2ThCoMkZDNEnWBS7X/+ME4OgDoWVp7r1X953fdXqxWSX8/++3IUoA8zLfZZvBTN8Z lQp574N8BAAfdqG0oi1OBRhOByM9d1hpEYg4qXmJvNDZzHG8su81gcwwO+KaBKEy6Skfpo/fDOj n85UVFKj8iDz3Ls4+zhkzod+J74YBwXEvBpocAWj1P06D/Zf X-Developer-Key: i=phahn-oss@avm.de; a=openpgp; fpr=58AF7C2E007CDBE62C59E078F50EFDCF8AD04B1A X-purgate-ID: 149429::1773143726-88610E6F-62997727/0/0 X-purgate-type: clean X-purgate-size: 4821 X-purgate-Ad: Categorized by eleven eXpurgate (R) https://www.eleven.de X-purgate: This mail is considered clean (visit https://www.eleven.de for further information) X-purgate: clean X-Mailman-Approved-At: Wed, 11 Mar 2026 08:04:38 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" UHJlZmVyIHVzaW5nIElTX0VSUl9PUl9OVUxMKCkgb3ZlciB1c2luZyBJU19FUlIoKSBhbmQgYSBt YW51YWwgTlVMTApjaGVjay4KCkNoYW5nZSBnZW5lcmF0ZWQgd2l0aCBjb2NjaW5lbGxlLgoKVG86 IEFuZHJ6ZWogSGFqZGEgPGFuZHJ6ZWouaGFqZGFAaW50ZWwuY29tPgpUbzogTmVpbCBBcm1zdHJv bmcgPG5laWwuYXJtc3Ryb25nQGxpbmFyby5vcmc+ClRvOiBSb2JlcnQgRm9zcyA8cmZvc3NAa2Vy bmVsLm9yZz4KVG86IExhdXJlbnQgUGluY2hhcnQgPExhdXJlbnQucGluY2hhcnRAaWRlYXNvbmJv YXJkLmNvbT4KVG86IEpvbmFzIEthcmxtYW4gPGpvbmFzQGt3aWJvby5zZT4KVG86IEplcm5laiBT a3JhYmVjIDxqZXJuZWouc2tyYWJlY0BnbWFpbC5jb20+ClRvOiBNYWFydGVuIExhbmtob3JzdCA8 bWFhcnRlbi5sYW5raG9yc3RAbGludXguaW50ZWwuY29tPgpUbzogTWF4aW1lIFJpcGFyZCA8bXJp cGFyZEBrZXJuZWwub3JnPgpUbzogVGhvbWFzIFppbW1lcm1hbm4gPHR6aW1tZXJtYW5uQHN1c2Uu ZGU+ClRvOiBEYXZpZCBBaXJsaWUgPGFpcmxpZWRAZ21haWwuY29tPgpUbzogU2ltb25hIFZldHRl ciA8c2ltb25hQGZmd2xsLmNoPgpUbzogWmhlbnl1IFdhbmcgPHpoZW55dXcubGludXhAZ21haWwu Y29tPgpUbzogWmhpIFdhbmcgPHpoaS53YW5nLmxpbnV4QGdtYWlsLmNvbT4KVG86IEphbmkgTmlr dWxhIDxqYW5pLm5pa3VsYUBsaW51eC5pbnRlbC5jb20+ClRvOiBKb29uYXMgTGFodGluZW4gPGpv b25hcy5sYWh0aW5lbkBsaW51eC5pbnRlbC5jb20+ClRvOiBSb2RyaWdvIFZpdmkgPHJvZHJpZ28u dml2aUBpbnRlbC5jb20+ClRvOiBUdnJ0a28gVXJzdWxpbiA8dHVyc3VsaW5AdXJzdWxpbi5uZXQ+ ClRvOiBBbGV4IERldWNoZXIgPGFsZXhhbmRlci5kZXVjaGVyQGFtZC5jb20+ClRvOiAiQ2hyaXN0 aWFuIEvDtm5pZyIgPGNocmlzdGlhbi5rb2VuaWdAYW1kLmNvbT4KVG86IFNhbmR5IEh1YW5nIDxo amNAcm9jay1jaGlwcy5jb20+ClRvOiAiSGVpa28gU3TDvGJuZXIiIDxoZWlrb0BzbnRlY2guZGU+ ClRvOiBBbmR5IFlhbiA8YW5keS55YW5Acm9jay1jaGlwcy5jb20+CkNjOiBkcmktZGV2ZWxAbGlz dHMuZnJlZWRlc2t0b3Aub3JnCkNjOiBsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnCkNjOiBp bnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCkNjOiBhbWQtZ2Z4QGxpc3RzLmZyZWVkZXNr dG9wLm9yZwpDYzogbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCkNjOiBsaW51 eC1yb2NrY2hpcEBsaXN0cy5pbmZyYWRlYWQub3JnClNpZ25lZC1vZmYtYnk6IFBoaWxpcHAgSGFo biA8cGhhaG4tb3NzQGF2bS5kZT4KLS0tCiBkcml2ZXJzL2dwdS9kcm0vYnJpZGdlL3N5bm9wc3lz L2R3LWhkbWkuYyAgICAgICB8IDIgKy0KIGRyaXZlcnMvZ3B1L2RybS9kcm1fc3lzZnMuYyAgICAg ICAgICAgICAgICAgICAgIHwgMiArLQogZHJpdmVycy9ncHUvZHJtL2k5MTUvZ3Z0L3NjaGVkdWxl ci5jICAgICAgICAgICAgfCA0ICsrLS0KIGRyaXZlcnMvZ3B1L2RybS9yYWRlb24vcmFkZW9uX3Rl c3QuYyAgICAgICAgICAgIHwgMiArLQogZHJpdmVycy9ncHUvZHJtL3JvY2tjaGlwL2R3LW1pcGkt ZHNpLXJvY2tjaGlwLmMgfCAyICstCiA1IGZpbGVzIGNoYW5nZWQsIDYgaW5zZXJ0aW9ucygrKSwg NiBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYnJpZGdlL3N5bm9w c3lzL2R3LWhkbWkuYyBiL2RyaXZlcnMvZ3B1L2RybS9icmlkZ2Uvc3lub3BzeXMvZHctaGRtaS5j CmluZGV4IGVlODhjMGU3OTNiMDQxNmQyMDEwNWE0MzQ0OGNiNDAzNzQwMmU2NGIuLjY0ZmEyYmM4 ZDI4MTk3MTQ3ZWUyMmI0Zjc0MTM0Y2MyN2RkOWIzMmQgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1 L2RybS9icmlkZ2Uvc3lub3BzeXMvZHctaGRtaS5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9icmlk Z2Uvc3lub3BzeXMvZHctaGRtaS5jCkBAIC0zNjA4LDcgKzM2MDgsNyBAQCB2b2lkIGR3X2hkbWlf cmVtb3ZlKHN0cnVjdCBkd19oZG1pICpoZG1pKQogewogCWRybV9icmlkZ2VfcmVtb3ZlKCZoZG1p LT5icmlkZ2UpOwogCi0JaWYgKGhkbWktPmF1ZGlvICYmICFJU19FUlIoaGRtaS0+YXVkaW8pKQor CWlmICghSVNfRVJSX09SX05VTEwoaGRtaS0+YXVkaW8pKQogCQlwbGF0Zm9ybV9kZXZpY2VfdW5y ZWdpc3RlcihoZG1pLT5hdWRpbyk7CiAJaWYgKCFJU19FUlIoaGRtaS0+Y2VjKSkKIAkJcGxhdGZv cm1fZGV2aWNlX3VucmVnaXN0ZXIoaGRtaS0+Y2VjKTsKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1 L2RybS9kcm1fc3lzZnMuYyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fc3lzZnMuYwppbmRleCBlZjRl OTIzYTg3Mjg0MzMzOTc0M2QyMWU0ODc3MjI1ODU1ZGE5MjFlLi42NzQ4YWNiNDE2M2U4ZjU2NThj OTIwMWEwNDEyYjM4ODYyYzdiYWFiIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vZHJtX3N5 c2ZzLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2RybV9zeXNmcy5jCkBAIC02MDAsNyArNjAwLDcg QEAgc3RydWN0IGRldmljZSAqZHJtX3N5c2ZzX21pbm9yX2FsbG9jKHN0cnVjdCBkcm1fbWlub3Ig Km1pbm9yKQogICovCiBpbnQgZHJtX2NsYXNzX2RldmljZV9yZWdpc3RlcihzdHJ1Y3QgZGV2aWNl ICpkZXYpCiB7Ci0JaWYgKCFkcm1fY2xhc3MgfHwgSVNfRVJSKGRybV9jbGFzcykpCisJaWYgKElT X0VSUl9PUl9OVUxMKGRybV9jbGFzcykpCiAJCXJldHVybiAtRU5PRU5UOwogCiAJZGV2LT5jbGFz cyA9IGRybV9jbGFzczsKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2d2dC9zY2hl ZHVsZXIuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2d2dC9zY2hlZHVsZXIuYwppbmRleCAxNWZk ZDUxNGNhODM2ZTg0ZjRkZTk1ZTMyMDdhYjQ1YmI5MjQzNDI2Li45MzNlYzVmZmExZjFlYmFmZDY4 Nzk5NmYxNjdiOTgyNDkwNzAyMjExIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9n dnQvc2NoZWR1bGVyLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZ3Z0L3NjaGVkdWxlci5j CkBAIC02NzUsMTAgKzY3NSwxMCBAQCBzdGF0aWMgdm9pZCByZWxlYXNlX3NoYWRvd19iYXRjaF9i dWZmZXIoc3RydWN0IGludGVsX3ZncHVfd29ya2xvYWQgKndvcmtsb2FkKQogCWxpc3RfZm9yX2Vh Y2hfZW50cnlfc2FmZShiYiwgcG9zLCAmd29ya2xvYWQtPnNoYWRvd19iYiwgbGlzdCkgewogCQlp ZiAoYmItPm9iaikgewogCQkJaTkxNV9nZW1fb2JqZWN0X2xvY2soYmItPm9iaiwgTlVMTCk7Ci0J CQlpZiAoYmItPnZhICYmICFJU19FUlIoYmItPnZhKSkKKwkJCWlmICghSVNfRVJSX09SX05VTEwo YmItPnZhKSkKIAkJCQlpOTE1X2dlbV9vYmplY3RfdW5waW5fbWFwKGJiLT5vYmopOwogCi0JCQlp ZiAoYmItPnZtYSAmJiAhSVNfRVJSKGJiLT52bWEpKQorCQkJaWYgKCFJU19FUlJfT1JfTlVMTChi Yi0+dm1hKSkKIAkJCQlpOTE1X3ZtYV91bnBpbihiYi0+dm1hKTsKIAogCQkJaTkxNV9nZW1fb2Jq ZWN0X3VubG9jayhiYi0+b2JqKTsKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9yYWRlb24v cmFkZW9uX3Rlc3QuYyBiL2RyaXZlcnMvZ3B1L2RybS9yYWRlb24vcmFkZW9uX3Rlc3QuYwppbmRl eCAwYjQ1OWY3ZGYyM2JhZTNlZWY3ZTM2ZjRiNWYzNTYzOGZiNmY0OTg1Li41NzMyODRjNGFmNjBm MTJkN2VkZWM4ODkyNjBmYzhhMmUyYjcwNDIwIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0v cmFkZW9uL3JhZGVvbl90ZXN0LmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL3JhZGVvbi9yYWRlb25f dGVzdC5jCkBAIC0yMzQsNyArMjM0LDcgQEAgc3RhdGljIHZvaWQgcmFkZW9uX2RvX3Rlc3RfbW92 ZXMoc3RydWN0IHJhZGVvbl9kZXZpY2UgKnJkZXYsIGludCBmbGFnKQogCQkJcmFkZW9uX2JvX3Vu cmVzZXJ2ZShndHRfb2JqW2ldKTsKIAkJCXJhZGVvbl9ib191bnJlZigmZ3R0X29ialtpXSk7CiAJ CX0KLQkJaWYgKGZlbmNlICYmICFJU19FUlIoZmVuY2UpKQorCQlpZiAoIUlTX0VSUl9PUl9OVUxM KGZlbmNlKSkKIAkJCXJhZGVvbl9mZW5jZV91bnJlZigmZmVuY2UpOwogCQlicmVhazsKIAl9CmRp ZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vcm9ja2NoaXAvZHctbWlwaS1kc2ktcm9ja2NoaXAu YyBiL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9kdy1taXBpLWRzaS1yb2NrY2hpcC5jCmluZGV4 IDM1NDdkOTFiMjVkMzE3YzZjYWQ2OTBkYTdkOTdhN2U1NDM2YzAyMzYuLjhhMjY3ZGU4NWRhOWM3 NmMyZTI5YjJhYmFiZjEyMThlNDAwMjgyYzIgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9y b2NrY2hpcC9kdy1taXBpLWRzaS1yb2NrY2hpcC5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9yb2Nr Y2hpcC9kdy1taXBpLWRzaS1yb2NrY2hpcC5jCkBAIC0xMDk1LDcgKzEwOTUsNyBAQCBzdGF0aWMg aW50IGR3X21pcGlfZHNpX3JvY2tjaGlwX2hvc3RfZGV0YWNoKHZvaWQgKnByaXZfZGF0YSwKIAlz dHJ1Y3QgZGV2aWNlICpzZWNvbmQ7CiAKIAlzZWNvbmQgPSBkd19taXBpX2RzaV9yb2NrY2hpcF9m aW5kX3NlY29uZChkc2kpOwotCWlmIChzZWNvbmQgJiYgIUlTX0VSUihzZWNvbmQpKQorCWlmICgh SVNfRVJSX09SX05VTEwoc2Vjb25kKSkKIAkJY29tcG9uZW50X2RlbChzZWNvbmQsICZkd19taXBp X2RzaV9yb2NrY2hpcF9vcHMpOwogCiAJY29tcG9uZW50X2RlbChkc2ktPmRldiwgJmR3X21pcGlf ZHNpX3JvY2tjaGlwX29wcyk7CgotLSAKMi40My4wCgo=