RDMA/bnxt_re: Fix an error path in bnxt_re_add_device

In bnxt_re_add_device(), when register netdev notifier fails, driver is
not unregistering the IB device in the error cleanup path.  Also, removed
the duplicate cleanup in error path of bnxt_re_probe.

Fixes: 94a9dc6 ("RDMA/bnxt_re: Group all operations under add_device and remove_device")
Link: https://patch.msgid.link/r/1728373302-19530-8-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

Author: kaleshap86

drivers/infiniband/hw/bnxt_re/main.c

@@ -1880,12 +1880,14 @@ static int bnxt_re_add_device(struct auxiliary_device *adev, u8 op_type)
 		rdev->nb.notifier_call = NULL;
 		pr_err("%s: Cannot register to netdevice_notifier",
 		       ROCE_DRV_MODULE_NAME);
-		return rc;
+		goto re_dev_unreg;
 	}
 	bnxt_re_setup_cc(rdev, true);
 
 	return 0;
 
+re_dev_unreg:
+	ib_unregister_device(&rdev->ibdev);
 re_dev_uninit:
 	bnxt_re_update_en_info_rdev(NULL, en_info, adev);
 	bnxt_re_dev_uninit(rdev, BNXT_RE_COMPLETE_REMOVE);
@@ -2029,15 +2031,7 @@ static int bnxt_re_probe(struct auxiliary_device *adev,
 	auxiliary_set_drvdata(adev, en_info);
 
 	rc = bnxt_re_add_device(adev, BNXT_RE_COMPLETE_INIT);
-	if (rc)
-		goto err;
 	mutex_unlock(&bnxt_re_mutex);
-	return 0;
-
-err:
-	mutex_unlock(&bnxt_re_mutex);
-	bnxt_re_remove(adev);
-
 	return rc;
 }