From patchwork Fri Dec 8 16:34:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeffrey Hugo X-Patchwork-Id: 13485657 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="FYj5AyrU" Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0099A1FC3 for ; Fri, 8 Dec 2023 08:35:29 -0800 (PST) Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3B8FIxwL008595; Fri, 8 Dec 2023 16:35:20 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=0IfjoUWiFbIplwms1JNGd6+1uzXj0YZbk2yn6tm1R6g=; b=FYj5AyrUwMVDgFwFHaaP+TR+IxHzClJ+cFkwC5orJq+IFYWskwm+sbC5Gxrfmf9sL6Xt /BbA1RUzoIV7fkGRcK3Ay3iJVL2djWrItLnTF794DiAFXSzi4Izsv5GVIo2MZEvGPRA6 lVbUM4/t8CsaeVIFJXzC9FknedjvNBFnygRcNAMN5X3VzFj13XX8im8xyzcqcbkfDrJa Zrwj0xrBXZ3QEwNkagaiT9yDnW4BOmIb8M3GMuwRbIkamdGBNDSr/qidFCLbm2wZyCAK S8THH1vbYKZYKMZas0mTFOT56SnTh1frbr+fRC9eCRXtlTJ7sSAsOCMWwBtRAJroTSGS pQ== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3uu928mag6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 08 Dec 2023 16:35:20 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 3B8GZJG6012499 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 8 Dec 2023 16:35:19 GMT Received: from jhugo-lnx.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 15.2.1118.40; Fri, 8 Dec 2023 08:35:18 -0800 From: Jeffrey Hugo To: , , , CC: , , , Jeffrey Hugo Subject: [PATCH 4/7] accel/qaic: Drop the reference to BO in error path of create BO IOCTL Date: Fri, 8 Dec 2023 09:34:54 -0700 Message-ID: <20231208163457.1295993-5-quic_jhugo@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231208163457.1295993-1-quic_jhugo@quicinc.com> References: <20231208163457.1295993-1-quic_jhugo@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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-ORIG-GUID: 6nOufPbRkB7CHF0IQdvToH3I9eXSAzWb X-Proofpoint-GUID: 6nOufPbRkB7CHF0IQdvToH3I9eXSAzWb X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-08_11,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 mlxscore=0 priorityscore=1501 suspectscore=0 malwarescore=0 lowpriorityscore=0 phishscore=0 impostorscore=0 clxscore=1015 bulkscore=0 spamscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2312080136 From: Pranjal Ramajor Asha Kanojiya Do not free BO explicitly in error path, just drop its reference, cleanup will be taken care by DRM as we have registered for ->free() callback. This patch makes sure that there is only one code path for BO to be freed. Signed-off-by: Pranjal Ramajor Asha Kanojiya Reviewed-by: Carl Vanderlip Reviewed-by: Jeffrey Hugo Signed-off-by: Jeffrey Hugo --- drivers/accel/qaic/qaic_data.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/accel/qaic/qaic_data.c b/drivers/accel/qaic/qaic_data.c index 89ab8fa19315..7faa00705c1d 100644 --- a/drivers/accel/qaic/qaic_data.c +++ b/drivers/accel/qaic/qaic_data.c @@ -574,6 +574,9 @@ static void qaic_free_sgt(struct sg_table *sgt) { struct scatterlist *sg; + if (!sgt) + return; + for (sg = sgt->sgl; sg; sg = sg_next(sg)) if (sg_page(sg)) __free_pages(sg_page(sg), get_order(sg->length)); @@ -717,7 +720,7 @@ int qaic_create_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *fi ret = drm_gem_handle_create(file_priv, obj, &args->handle); if (ret) - goto free_sgt; + goto free_bo; bo->handle = args->handle; drm_gem_object_put(obj); @@ -726,10 +729,8 @@ int qaic_create_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *fi return 0; -free_sgt: - qaic_free_sgt(bo->sgt); free_bo: - kfree(bo); + drm_gem_object_put(obj); unlock_dev_srcu: srcu_read_unlock(&qdev->dev_lock, qdev_rcu_id); unlock_usr_srcu: