From nobody Mon Jun 8 14:35:33 2026 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C07653290A5 for ; Thu, 28 May 2026 18:33:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779993197; cv=none; b=f/0di9HbG4KJlPy2uTLATu9sVtANHJkSR6bJH1+RgJ5k3x/T8yofG0FC6Hkut7wWrGbrlSYZm/7dbypW2Z2bRkD7JLH+eNwSTwnaQfr5YcZ3DNn3kaiVwvcYM6rqiCZBRLw3SJ74ZmYUKo8Y6XHDqe0MpTR172dihmSiUKc0br8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779993197; c=relaxed/simple; bh=8qiNfXupTsqZ4Rv3g7nTjobddsHbVawn5rqT7Zvap2M=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=GYTvYzqxxh3m1NlwctUZ7LkBCDqBjE1ZSzzojEjP0JcpmCvTz1To07UYWh1z+sDlCqTyfKluhf7xvooYqkFAABTo1u3M5ca3gdEfRTTA+gFY10Y0o5yxW3xnoR/egcRx8rzra4y50zAw+It8h/Wm6nwCEzsbHlchjRSgfaaHhqE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=Pe5NwQ8E; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Pe5NwQ8E" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1779993195; 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; bh=P8xQYAjs5DtPCuCpT2PrJS1UzcTFSVvXTrRvI9W1Hn0=; b=Pe5NwQ8E5cTZYYXrps/19VJs5VJwh9ZmTLpVKoPOYBc/e9Tr1ql8/61m7aacslSBg5m1sB Gf2lC/ufXH1EmCag019Vi4ZeB6QWRwKX0b2fa2YjZpeomPG5ivHHMwV5RSxoJz0JvVF+1+ DVad6SsAQ+cX4W+4WkhenQrcq1rpHYM= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-607-QGNVMmK-P5-_nzvWm5zdow-1; Thu, 28 May 2026 14:33:10 -0400 X-MC-Unique: QGNVMmK-P5-_nzvWm5zdow-1 X-Mimecast-MFC-AGG-ID: QGNVMmK-P5-_nzvWm5zdow_1779993188 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 52C6B1956088; Thu, 28 May 2026 18:33:07 +0000 (UTC) Received: from GoldenWind.lan (unknown [10.22.89.248]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 4769D19560AB; Thu, 28 May 2026 18:33:04 +0000 (UTC) From: Lyude Paul To: dri-devel@lists.freedesktop.org, dakr@kernel.org, nouveau@lists.freedesktop.org Cc: "Dave Airlie" , "Timur Tabi" , "Qianfeng Rong" , "Maarten Lankhorst" , linux-kernel@vger.kernel.org, "Simona Vetter" , "David Airlie" , "Thomas Zimmermann" , "Maxime Ripard" , "Hongling Zeng" , "Zhi Wang" , "Lyude Paul" Subject: [PATCH] Revert "nouveau/gsp/rm: cleanup remaining IS_ERR_OR_NULL usage" Date: Thu, 28 May 2026 14:33:00 -0400 Message-ID: <20260528183302.3924510-1-lyude@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Content-Type: text/plain; charset="utf-8" This reverts commit 1a80c009e27b42e8c202d4c5dbd9dad9e22af742. Embarassingly, it seems that I completely missed a pretty big issue this patch causes according to Danilo and Sashiko: https://lists.freedesktop.org/archives/dri-devel/2026-May/570353.html Where it seems this causes some machines to segfault during nouveau probe. So, revert this for the time being. Signed-off-by: Lyude Paul --- drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/ctrl.c | 2 +- drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/ctrl.c b/drive= rs/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/ctrl.c index aa0ebd3dfb17d..70b9ee911c5e7 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/ctrl.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/ctrl.c @@ -42,7 +42,7 @@ r535_gsp_rpc_rm_ctrl_push(struct nvkm_gsp_object *object,= void **params, u32 rep int ret =3D 0; =20 rpc =3D nvkm_gsp_rpc_push(gsp, rpc, NVKM_GSP_RPC_REPLY_RECV, repc); - if (IS_ERR(rpc)) { + if (IS_ERR_OR_NULL(rpc)) { *params =3D NULL; return PTR_ERR(rpc); } diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c b/driver= s/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c index 0c9657cb2dd72..41301f19729cf 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c @@ -459,11 +459,11 @@ r535_gsp_msg_recv(struct nvkm_gsp *gsp, int fn, u32 g= sp_rpc_len) =20 retry: rpc =3D r535_gsp_msgq_peek(gsp, sizeof(*rpc), &retries); - if (IS_ERR(rpc)) + if (IS_ERR_OR_NULL(rpc)) return rpc; =20 rpc =3D r535_gsp_msgq_recv(gsp, gsp_rpc_len, &retries); - if (IS_ERR(rpc)) + if (IS_ERR_OR_NULL(rpc)) return rpc; =20 if (rpc->rpc_result) { @@ -561,7 +561,7 @@ r535_gsp_rpc_handle_reply(struct nvkm_gsp *gsp, u32 fn, break; case NVKM_GSP_RPC_REPLY_RECV: reply =3D r535_gsp_msg_recv(gsp, fn, gsp_rpc_len); - if (!IS_ERR(reply)) + if (!IS_ERR_OR_NULL(reply)) repv =3D reply->data; else repv =3D reply; --=20 2.54.0