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USB: minor cleanups for sysfs.c

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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: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Stern 2007-02-20 14:59:59 -05:00 • committed by Greg Kroah-Hartman
parent 7ceec1f1d2
commit aa084f3efe
1 changed files with 12 additions and 24 deletions
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36
drivers/usb/core/sysfs.c
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@ -250,10 +250,7 @@ int usb_create_sysfs_dev_files(struct usb_device *udev)
goto error; goto error;
return 0; return 0;
error: error:
usb_remove_ep_files(&udev->ep0); usb_remove_sysfs_dev_files(udev);
device_remove_file(dev, &dev_attr_manufacturer);
device_remove_file(dev, &dev_attr_product);
device_remove_file(dev, &dev_attr_serial);
return retval; return retval;
} }
@ -262,14 +259,10 @@ void usb_remove_sysfs_dev_files(struct usb_device *udev)
struct device *dev = &udev->dev; struct device *dev = &udev->dev;
usb_remove_ep_files(&udev->ep0); 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);
sysfs_remove_group(&dev->kobj, &dev_attr_grp); 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);
} }
/* Interface fields */ /* 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) 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_device *udev = interface_to_usbdev(intf);
struct usb_host_interface *alt = intf->cur_altsetting; struct usb_host_interface *alt = intf->cur_altsetting;
int retval; int retval;
retval = sysfs_create_group(&intf->dev.kobj, &intf_attr_grp); retval = sysfs_create_group(&dev->kobj, &intf_attr_grp);
if (retval) if (retval)
goto error; return retval;
if (alt->string == NULL) if (alt->string == NULL)
alt->string = usb_cache_string(udev, alt->desc.iInterface); alt->string = usb_cache_string(udev, alt->desc.iInterface);
if (alt->string) 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); usb_create_intf_ep_files(intf, udev);
return 0; 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) void usb_remove_sysfs_intf_files(struct usb_interface *intf)
{ {
usb_remove_intf_ep_files(intf); struct device *dev = &intf->dev;
sysfs_remove_group(&intf->dev.kobj, &intf_attr_grp);
if (intf->cur_altsetting->string) usb_remove_intf_ep_files(intf);
device_remove_file(&intf->dev, &dev_attr_interface); device_remove_file(dev, &dev_attr_interface);
sysfs_remove_group(&dev->kobj, &intf_attr_grp);
} }