From 72f6e3a8bc956fddf6e004ae9b804977d1458e77 Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Mon, 4 Jun 2012 19:33:09 +0200 Subject: s390/vmlogrdr: cleanup driver attribute usage Let the driver core handle driver attribute creation and removal. This will simplify the code and eliminates races between attribute availability and userspace notification via uevents. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky --- drivers/s390/char/vmlogrdr.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) (limited to 'drivers/s390/char') diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c index e9d70aedbaa2..5138fc93dc00 100644 --- a/drivers/s390/char/vmlogrdr.c +++ b/drivers/s390/char/vmlogrdr.c @@ -656,10 +656,19 @@ static ssize_t vmlogrdr_recording_status_show(struct device_driver *driver, len = strlen(buf); return len; } - - static DRIVER_ATTR(recording_status, 0444, vmlogrdr_recording_status_show, NULL); +static struct attribute *vmlogrdr_drv_attrs[] = { + &driver_attr_recording_status.attr, + NULL, +}; +static struct attribute_group vmlogrdr_drv_attr_group = { + .attrs = vmlogrdr_drv_attrs, +}; +static const struct attribute_group *vmlogrdr_drv_attr_groups[] = { + &vmlogrdr_drv_attr_group, + NULL, +}; static struct attribute *vmlogrdr_attrs[] = { &dev_attr_autopurge.attr, @@ -704,9 +713,9 @@ static struct device_driver vmlogrdr_driver = { .name = "vmlogrdr", .bus = &iucv_bus, .pm = &vmlogrdr_pm_ops, + .groups = vmlogrdr_drv_attr_groups, }; - static int vmlogrdr_register_driver(void) { int ret; @@ -720,21 +729,14 @@ static int vmlogrdr_register_driver(void) if (ret) goto out_iucv; - ret = driver_create_file(&vmlogrdr_driver, - &driver_attr_recording_status); - if (ret) - goto out_driver; - vmlogrdr_class = class_create(THIS_MODULE, "vmlogrdr"); if (IS_ERR(vmlogrdr_class)) { ret = PTR_ERR(vmlogrdr_class); vmlogrdr_class = NULL; - goto out_attr; + goto out_driver; } return 0; -out_attr: - driver_remove_file(&vmlogrdr_driver, &driver_attr_recording_status); out_driver: driver_unregister(&vmlogrdr_driver); out_iucv: @@ -748,7 +750,6 @@ static void vmlogrdr_unregister_driver(void) { class_destroy(vmlogrdr_class); vmlogrdr_class = NULL; - driver_remove_file(&vmlogrdr_driver, &driver_attr_recording_status); driver_unregister(&vmlogrdr_driver); iucv_unregister(&vmlogrdr_iucv_handler, 1); } -- cgit v1.2.1