From patchwork Wed Sep 28 07:18:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akhil P Oommen X-Patchwork-Id: 610217 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 D1511C04A95 for ; Wed, 28 Sep 2022 07:19:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233011AbiI1HTh (ORCPT ); Wed, 28 Sep 2022 03:19:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232753AbiI1HTd (ORCPT ); Wed, 28 Sep 2022 03:19:33 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2CF986827; Wed, 28 Sep 2022 00:19:29 -0700 (PDT) Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 28S7Abku028860; Wed, 28 Sep 2022 07:19:25 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=qcppdkim1; bh=O9hgHb8+fOlzcHV44iEHkJrs6lWrqSeu/CKj2wc7fcg=; b=fIOEXwLmTNI2xexclZB7uaKHV8Ipr7ACYcjL5+5aPmZiBATi9H6E48OIJ9fusFxjMAAQ oACv5vHv7NCwQ7WK4EbZI9JjERE5n7krTkXZSREmcYvRcliQXwVMNx8rNYmoVdzdaent 5/LoWAL9wRIjLcYsfh9MYH4jYvZMMpnbg1pxa8+ZiwCeLArIgsdEgz+4mPyO1FlDDgUF F49lvpDcAdNs+EW8/Wzp2WmkY4Mp5iGmNDWh70ybrIgMJ0brurEgekAFtclesRtqhq19 cZvk6wI8Nm0A3JU7wPOoBDLrLQ9474CxUzHaXONHlkhxLw7vxP/Tx/oC0UihK1PNpt73 2w== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3jvbf0gs3v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 28 Sep 2022 07:19:24 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 28S7JNoq010629 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 28 Sep 2022 07:19:23 GMT Received: from hyd-lnxbld559.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.29; Wed, 28 Sep 2022 00:19:18 -0700 From: Akhil P Oommen To: freedreno , , , Rob Clark CC: Jonathan Marek , Douglas Anderson , Matthias Kaehlcke , Jordan Crouse , Akhil P Oommen , Abhinav Kumar , Daniel Vetter , David Airlie , Dmitry Baryshkov , Sean Paul , Subject: [PATCH 1/2] drm/msm/a6xx: Replace kcalloc() with kvzalloc() Date: Wed, 28 Sep 2022 12:48:59 +0530 Message-ID: <20220928124830.1.I8ea24a8d586b4978823b848adde000f92f74d5c2@changeid> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: 7hPNQeTt59QRMJ-ilRfg0CsJzF7oGOHo X-Proofpoint-ORIG-GUID: 7hPNQeTt59QRMJ-ilRfg0CsJzF7oGOHo X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.528,FMLib:17.11.122.1 definitions=2022-09-28_02,2022-09-27_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 mlxscore=0 priorityscore=1501 phishscore=0 impostorscore=0 lowpriorityscore=0 mlxlogscore=999 adultscore=0 clxscore=1011 bulkscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2209280043 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org In order to reduce chance of allocation failure while capturing a6xx gpu state, use kvzalloc() instead of kcalloc() in state_kcalloc(). Indirectly, this patch helps to fix leaking memory allocated for gmu_debug object. Fixes: b859f9b009b (drm/msm/gpu: Snapshot GMU debug buffer) Signed-off-by: Akhil P Oommen --- drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c index 55f4433..3c112a6 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c @@ -91,7 +91,7 @@ struct a6xx_state_memobj { static void *state_kcalloc(struct a6xx_gpu_state *a6xx_state, int nr, size_t objsize) { struct a6xx_state_memobj *obj = - kzalloc((nr * objsize) + sizeof(*obj), GFP_KERNEL); + kvzalloc((nr * objsize) + sizeof(*obj), GFP_KERNEL); if (!obj) return NULL; @@ -819,7 +819,7 @@ static struct msm_gpu_state_bo *a6xx_snapshot_gmu_bo( snapshot->iova = bo->iova; snapshot->size = bo->size; - snapshot->data = kvzalloc(snapshot->size, GFP_KERNEL); + snapshot->data = state_kcalloc(a6xx_state, 1, snapshot->size); if (!snapshot->data) return NULL; @@ -1034,14 +1034,8 @@ static void a6xx_gpu_state_destroy(struct kref *kref) struct a6xx_gpu_state *a6xx_state = container_of(state, struct a6xx_gpu_state, base); - if (a6xx_state->gmu_log) - kvfree(a6xx_state->gmu_log->data); - - if (a6xx_state->gmu_hfi) - kvfree(a6xx_state->gmu_hfi->data); - list_for_each_entry_safe(obj, tmp, &a6xx_state->objs, node) - kfree(obj); + kvfree(obj); adreno_gpu_state_destroy(state); kfree(a6xx_state);