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USB: ueagle-atm: convert to use dev_groups

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USB drivers now support the ability for the driver core to handle the
creation and removal of device-specific sysfs files in a race-free
manner.  Take advantage of that by converting the driver to use this by
moving the sysfs attributes into a group and assigning the dev_groups
pointer to it.

Cc: Matthieu CASTET <castet.matthieu@free.fr>
Cc: Stanislaw Gruszka <stf_xl@wp.pl>
Link: https://lore.kernel.org/r/20190806144502.17792-5-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2019-08-06 16:44:54 +02:00
parent 02c4d45d83
commit ec935791ec
1 changed files with 4 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/usb/atm/ueagle-atm.c
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@ -2458,7 +2458,7 @@ static int claim_interface(struct usb_device *usb_dev,
return ret;
}
static struct attribute *attrs[] = {
static struct attribute *uea_attrs[] = {
&dev_attr_stat_status.attr,
&dev_attr_stat_mflags.attr,
&dev_attr_stat_human_status.attr,
@ -2479,9 +2479,7 @@ static struct attribute *attrs[] = {
&dev_attr_stat_firmid.attr,
NULL,
};
static const struct attribute_group attr_grp = {
.attrs = attrs,
};
ATTRIBUTE_GROUPS(uea);
static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
const struct usb_device_id *id)
@ -2550,18 +2548,12 @@ static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
}
}
ret = sysfs_create_group(&intf->dev.kobj, &attr_grp);
ret = uea_boot(sc);
if (ret < 0)
goto error;
ret = uea_boot(sc);
if (ret < 0)
goto error_rm_grp;
return 0;
error_rm_grp:
sysfs_remove_group(&intf->dev.kobj, &attr_grp);
error:
kfree(sc);
return ret;
@ -2571,7 +2563,6 @@ static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
{
struct uea_softc *sc = usbatm->driver_data;
sysfs_remove_group(&intf->dev.kobj, &attr_grp);
uea_stop(sc);
kfree(sc);
}
@ -2721,6 +2712,7 @@ static struct usb_driver uea_driver = {
.id_table = uea_ids,
.probe = uea_probe,
.disconnect = uea_disconnect,
.dev_groups = uea_groups,
};
MODULE_DEVICE_TABLE(usb, uea_ids);