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Commit aa084f3e authored by Alan Stern's avatar Alan Stern Committed by Greg Kroah-Hartman
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USB: minor cleanups for sysfs.c 



This patch (as858) makes some minor cleanups to sysfs.c in usbcore.
Unnecessary tests are removed and a few temp variables are added.

Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 7ceec1f1

drivers/usb/core/sysfs.c

+12 −24
Original line number Diff line number Diff line
@@ -250,10 +250,7 @@ int usb_create_sysfs_dev_files(struct usb_device *udev) 
		goto error;

	return 0;

error:

	usb_remove_ep_files(&udev->ep0);

	device_remove_file(dev, &dev_attr_manufacturer);

	device_remove_file(dev, &dev_attr_product);

	device_remove_file(dev, &dev_attr_serial);

	usb_remove_sysfs_dev_files(udev);

	return retval;

}
@@ -262,14 +259,10 @@ void usb_remove_sysfs_dev_files(struct usb_device *udev) 
	struct device *dev = &udev->dev;



	usb_remove_ep_files(&udev->ep0);

	sysfs_remove_group(&dev->kobj, &dev_attr_grp);



	if (udev->manufacturer)

	device_remove_file(dev, &dev_attr_manufacturer);

	if (udev->product)

	device_remove_file(dev, &dev_attr_product);

	if (udev->serial)

	device_remove_file(dev, &dev_attr_serial);

	sysfs_remove_group(&dev->kobj, &dev_attr_grp);

}



/* Interface fields */
@@ -373,33 +366,28 @@ static inline void usb_remove_intf_ep_files(struct usb_interface *intf) 


int usb_create_sysfs_intf_files(struct usb_interface *intf)

{

	struct device *dev = &intf->dev;

	struct usb_device *udev = interface_to_usbdev(intf);

	struct usb_host_interface *alt = intf->cur_altsetting;

	int retval;



	retval = sysfs_create_group(&intf->dev.kobj, &intf_attr_grp);

	retval = sysfs_create_group(&dev->kobj, &intf_attr_grp);

	if (retval)

		goto error;

		return retval;



	if (alt->string == NULL)

		alt->string = usb_cache_string(udev, alt->desc.iInterface);

	if (alt->string)

		retval = device_create_file(&intf->dev, &dev_attr_interface);

		retval = device_create_file(dev, &dev_attr_interface);

	usb_create_intf_ep_files(intf, udev);

	return 0;

error:

	if (alt->string)

		device_remove_file(&intf->dev, &dev_attr_interface);

	sysfs_remove_group(&intf->dev.kobj, &intf_attr_grp);

	usb_remove_intf_ep_files(intf);

	return retval;

}



void usb_remove_sysfs_intf_files(struct usb_interface *intf)

{

	usb_remove_intf_ep_files(intf);

	sysfs_remove_group(&intf->dev.kobj, &intf_attr_grp);

	struct device *dev = &intf->dev;



	if (intf->cur_altsetting->string)

		device_remove_file(&intf->dev, &dev_attr_interface);

	usb_remove_intf_ep_files(intf);

	device_remove_file(dev, &dev_attr_interface);

	sysfs_remove_group(&dev->kobj, &intf_attr_grp);

}