diff options
| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-06 16:44:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-09 07:55:44 +0200 |
| commit | 02c4d45d838957971ec5b7ee359380a0ccfdb963 (patch) | |
| tree | 034a77c0c2fac88000ecb30a32d17f915ff8df98 /drivers/usb/class | |
| parent | USB: usbtmc: convert to use dev_groups (diff) | |
| download | linux-dev-02c4d45d838957971ec5b7ee359380a0ccfdb963.tar.xz linux-dev-02c4d45d838957971ec5b7ee359380a0ccfdb963.zip | |
USB: usblp: convert to use dev_groups
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: Pete Zaitcev <zaitcev@redhat.com>
Link: https://lore.kernel.org/r/20190806144502.17792-6-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/class')
| -rw-r--r-- | drivers/usb/class/usblp.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index 407a7a6198a2..7fea4999d352 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -1082,6 +1082,12 @@ static ssize_t ieee1284_id_show(struct device *dev, struct device_attribute *att static DEVICE_ATTR_RO(ieee1284_id); +static struct attribute *usblp_attrs[] = { + &dev_attr_ieee1284_id.attr, + NULL, +}; +ATTRIBUTE_GROUPS(usblp); + static int usblp_probe(struct usb_interface *intf, const struct usb_device_id *id) { @@ -1156,9 +1162,6 @@ static int usblp_probe(struct usb_interface *intf, /* Retrieve and store the device ID string. */ usblp_cache_device_id_string(usblp); - retval = device_create_file(&intf->dev, &dev_attr_ieee1284_id); - if (retval) - goto abort_intfdata; #ifdef DEBUG usblp_check_status(usblp, 0); @@ -1189,7 +1192,6 @@ static int usblp_probe(struct usb_interface *intf, abort_intfdata: usb_set_intfdata(intf, NULL); - device_remove_file(&intf->dev, &dev_attr_ieee1284_id); abort: kfree(usblp->readbuf); kfree(usblp->statusbuf); @@ -1360,8 +1362,6 @@ static void usblp_disconnect(struct usb_interface *intf) BUG(); } - device_remove_file(&intf->dev, &dev_attr_ieee1284_id); - mutex_lock(&usblp_mutex); mutex_lock(&usblp->mut); usblp->present = 0; @@ -1421,6 +1421,7 @@ static struct usb_driver usblp_driver = { .suspend = usblp_suspend, .resume = usblp_resume, .id_table = usblp_ids, + .dev_groups = usblp_groups, .supports_autosuspend = 1, }; |