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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Dec 2024 14:10:01.9364 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 75d09548-c890-4a76-8e81-08dd13a42dc3 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: DU2PEPF00028D12.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU4PR08MB11152 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241203_061012_206949_A648967C X-CRM114-Status: GOOD ( 20.96 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Sudeep. > > ffa_dev = kzalloc(sizeof(*ffa_dev), GFP_KERNEL); > > if (!ffa_dev) { > > ida_free(&ffa_bus_id, id); > > - return NULL; > > + return ERR_PTR(-ENOMEM); > > I am not keen on changing the error from NULL here. -ENOMEM has its own > logging. ida_alloc failing is very unlikely unless you have so many > partitions in the system. > Okay I'll restore. > > } > > > > dev = &ffa_dev->dev; > > @@ -210,16 +216,18 @@ struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id, > > dev_set_name(&ffa_dev->dev, "arm-ffa-%d", id); > > > > ffa_dev->id = id; > > - ffa_dev->vm_id = vm_id; > > + ffa_dev->vm_id = part_info->id; > > + ffa_dev->properties = part_info->properties; > > ffa_dev->ops = ops; > > - uuid_copy(&ffa_dev->uuid, uuid); > > + import_uuid(&uuid, (u8 *)part_info->uuid); > > + uuid_copy(&ffa_dev->uuid, &uuid); > > > > ret = device_register(&ffa_dev->dev); > > if (ret) { > > dev_err(dev, "unable to register device %s err=%d\n", > > dev_name(dev), ret); > > This error log will give the information you are adding in driver.c, so > it is again not needed to change that. > > > put_device(dev); > > - return NULL; > > + return ERR_PTR(ret); > > } > > > > return ffa_dev; > > diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c > > index b14cbdae94e8..a3a9cdec7389 100644 > > --- a/drivers/firmware/arm_ffa/driver.c > > +++ b/drivers/firmware/arm_ffa/driver.c > > @@ -1406,23 +1406,19 @@ static int ffa_setup_partitions(void) > > > > xa_init(&drv_info->partition_info); > > for (idx = 0, tpbuf = pbuf; idx < count; idx++, tpbuf++) { > > - import_uuid(&uuid, (u8 *)tpbuf->uuid); > > - > > /* Note that if the UUID will be uuid_null, that will require > > * ffa_bus_notifier() to find the UUID of this partition id > > * with help of ffa_device_match_uuid(). FF-A v1.1 and above > > * provides UUID here for each partition as part of the > > * discovery API and the same is passed. > > */ > > - ffa_dev = ffa_device_register(&uuid, tpbuf->id, &ffa_drv_ops); > > - if (!ffa_dev) { > > - pr_err("%s: failed to register partition ID 0x%x\n", > > - __func__, tpbuf->id); > > + ffa_dev = ffa_device_register(tpbuf, &ffa_drv_ops); > > + if (IS_ERR_OR_NULL(ffa_dev)) { > > + pr_err("%s: failed to register partition ID 0x%x, error %ld\n", > > + __func__, tpbuf->id, PTR_ERR(ffa_dev)); > > Drop this additional error info you are adding as bus.c will provide it. Okay. Thanks!