Message ID | 20241001055633.21062-1-quic_pbrahma@quicinc.com (mailing list archive) |
---|---|
State | New |
Headers | show
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Mon, 30 Sep 2024 22:56:52 -0700 From: Pratyush Brahma <quic_pbrahma@quicinc.com> To: <will@kernel.org> CC: <robin.murphy@arm.com>, <joro@8bytes.org>, <jgg@ziepe.ca>, <jsnitsel@redhat.com>, <robdclark@chromium.org>, <quic_c_gdjako@quicinc.com>, <dmitry.baryshkov@linaro.org>, <linux-arm-kernel@lists.infradead.org>, <iommu@lists.linux.dev>, <linux-kernel@vger.kernel.org>, Pratyush Brahma <quic_pbrahma@quicinc.com>, Prakash Gupta <quic_guptap@quicinc.com> Subject: [PATCH] iommu/arm-smmu: Defer probe of clients after smmu device bound Date: Tue, 1 Oct 2024 11:26:33 +0530 Message-ID: <20241001055633.21062-1-quic_pbrahma@quicinc.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01c.na.qualcomm.com (10.45.79.139) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: HhDrH_lDxbp9AiQPWo-8IuI2O14j82zF X-Proofpoint-ORIG-GUID: HhDrH_lDxbp9AiQPWo-8IuI2O14j82zF X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 mlxlogscore=981 impostorscore=0 mlxscore=0 clxscore=1011 priorityscore=1501 adultscore=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 malwarescore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2408220000 definitions=main-2410010038 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240930_225716_646589_2C29C0AA X-CRM114-Status: GOOD ( 14.25 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org |
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iommu/arm-smmu: Defer probe of clients after smmu device bound
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diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c index 723273440c21..1f2bafa92f1f 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c @@ -1437,6 +1437,8 @@ static struct iommu_device *arm_smmu_probe_device(struct device *dev) goto out_free; } else { smmu = arm_smmu_get_by_fwnode(fwspec->iommu_fwnode); + if (!smmu) + return dev_err_probe(dev, -EPROBE_DEFER, "smmu dev has not bound yet\n"); } ret = -EINVAL;