From patchwork Tue Feb 21 18:42:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jessica Zhang X-Patchwork-Id: 13148324 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 5BE16C61DA3 for ; Tue, 21 Feb 2023 18:43:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229777AbjBUSni (ORCPT ); Tue, 21 Feb 2023 13:43:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41988 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229712AbjBUSni (ORCPT ); Tue, 21 Feb 2023 13:43:38 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8D8AEB777 for ; Tue, 21 Feb 2023 10:43:37 -0800 (PST) Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 31LCaao7012602; Tue, 21 Feb 2023 18:43:32 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=qcppdkim1; bh=rRusZRA5lfRW+Qx6Cec8ou0MNPwfqLS7chjmEJ5UL3c=; b=bChc2Sg5J5xiNfUAumNEeADHNLLOg9/7ztZKs3Gelb1PVhAs36SGMuqDrh4xYiPCylP8 wYXZbObj5Bf6fcuyBzpbBBzhBgWXuvY+dqHTkXQh7gfhsieyJsJJFnVm8mmXURCTNN7Y 1RTYmGWxudn62jaq13oG04HgDP/t/AljPuZqrLnN+seokbf6BjcOvX97LD1U3tXV8cz1 tL55SxjLunmMhtaI1iQ0rB6cXWoiyryULvc0eolHS0Ob0SVLe37p0m0Pt0z596U8ATYp 9rQqStbKfh4akCcQ2XQrgBA+iun/2t/M7oGsRmEOIRoMmEnnUrxGMHIztYF1Ldn+T3EA Qg== Received: from nasanppmta02.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3nubb1xkcj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Feb 2023 18:43:32 +0000 Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 31LIhV57009232 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Feb 2023 18:43:31 GMT Received: from JESSZHAN.qualcomm.com (10.80.80.8) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.41; Tue, 21 Feb 2023 10:43:31 -0800 From: Jessica Zhang To: CC: Jessica Zhang , , , , , , , , Subject: [PATCH v4 2/4] drm/msm: Check for NULL before calling prepare_commit() Date: Tue, 21 Feb 2023 10:42:54 -0800 Message-ID: <20230221184256.1436-3-quic_jesszhan@quicinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230221184256.1436-1-quic_jesszhan@quicinc.com> References: <20230221184256.1436-1-quic_jesszhan@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: SFs5B_ijcjW0JhR3zcjyC2RokU6hHFW5 X-Proofpoint-GUID: SFs5B_ijcjW0JhR3zcjyC2RokU6hHFW5 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-21_12,2023-02-20_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 suspectscore=0 adultscore=0 lowpriorityscore=0 spamscore=0 bulkscore=0 mlxlogscore=667 malwarescore=0 priorityscore=1501 mlxscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302210159 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add a NULL check before calling prepare_commit() in msm_atomic_commit_tail() Signed-off-by: Jessica Zhang Reviewed-by: Dmitry Baryshkov Reviewed-by: Marijn Suijten --- drivers/gpu/drm/msm/msm_atomic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/msm_atomic.c b/drivers/gpu/drm/msm/msm_atomic.c index 1686fbb611fd..c8a0a5cc5ca5 100644 --- a/drivers/gpu/drm/msm/msm_atomic.c +++ b/drivers/gpu/drm/msm/msm_atomic.c @@ -206,7 +206,8 @@ void msm_atomic_commit_tail(struct drm_atomic_state *state) * Now that there is no in-progress flush, prepare the * current update: */ - kms->funcs->prepare_commit(kms, state); + if (kms->funcs->prepare_commit) + kms->funcs->prepare_commit(kms, state); /* * Push atomic updates down to hardware: