From 362f87f3122d1f744bb09caa40e86fae5d9f4c60 Mon Sep 17 00:00:00 2001 From: David Kershner Date: Tue, 28 Mar 2017 09:34:45 -0400 Subject: [PATCH] staging: unisys: visorbus: fix error handling in create_bus_instance The function get_vbus_header_info returns errors that were being handled incorrectly. Fix the error handling in create_bus_instance. Signed-off-by: David Kershner Reviewed-by: Reviewed-by: Tim Sell Signed-off-by: Greg Kroah-Hartman --- drivers/staging/unisys/visorbus/visorbus_main.c | 39 +++++++++---------------- 1 file changed, 14 insertions(+), 25 deletions(-) diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index bf0f191..3e756ca 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -1023,46 +1023,35 @@ create_bus_instance(struct visor_device *dev) dev->debugfs_dir = debugfs_create_dir(dev_name(&dev->device), visorbus_debugfs_dir); - if (!dev->debugfs_dir) { - err = -ENOMEM; - goto err_hdr_info; - } dev->debugfs_client_bus_info = debugfs_create_file("client_bus_info", 0440, dev->debugfs_dir, dev, &client_bus_info_debugfs_fops); - if (!dev->debugfs_client_bus_info) { - err = -ENOMEM; + + dev_set_drvdata(&dev->device, dev); + err = get_vbus_header_info(dev->visorchannel, hdr_info); + if (err < 0) goto err_debugfs_dir; - } - if (device_register(&dev->device) < 0) { + err = device_register(&dev->device); + if (err < 0) { POSTCODE_LINUX(DEVICE_CREATE_FAILURE_PC, 0, id, DIAG_SEVERITY_ERR); - err = -ENODEV; - goto err_debugfs_created; + goto err_debugfs_dir; } - if (get_vbus_header_info(dev->visorchannel, hdr_info) >= 0) { - dev->vbus_hdr_info = (void *)hdr_info; - write_vbus_chp_info(dev->visorchannel, hdr_info, - &chipset_driverinfo); - write_vbus_bus_info(dev->visorchannel, hdr_info, - &clientbus_driverinfo); - } else { - kfree(hdr_info); - } list_add_tail(&dev->list_all, &list_all_bus_instances); - dev_set_drvdata(&dev->device, dev); - return 0; -err_debugfs_created: - debugfs_remove(dev->debugfs_client_bus_info); + dev->vbus_hdr_info = (void *)hdr_info; + write_vbus_chp_info(dev->visorchannel, hdr_info, + &chipset_driverinfo); + write_vbus_bus_info(dev->visorchannel, hdr_info, + &clientbus_driverinfo); + + return 0; err_debugfs_dir: debugfs_remove_recursive(dev->debugfs_dir); - -err_hdr_info: kfree(hdr_info); return err; } -- 2.7.4