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USB: core: use DRIVER_ATTR_RW()

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Use DRIVER_ATTR_RW() to make it easier to audit sysfs file permissions.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2013-08-23 15:12:14 -07:00
parent 3bbc47d8b0
commit 598d03610a
1 changed files with 13 additions and 15 deletions
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28
drivers/usb/core/driver.c
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@ -94,34 +94,27 @@ ssize_t usb_show_dynids(struct usb_dynids *dynids, char *buf)
} }
EXPORT_SYMBOL_GPL(usb_show_dynids); EXPORT_SYMBOL_GPL(usb_show_dynids);
static ssize_t show_dynids(struct device_driver *driver, char *buf) static ssize_t new_id_show(struct device_driver *driver, char *buf)
{ {
struct usb_driver *usb_drv = to_usb_driver(driver); struct usb_driver *usb_drv = to_usb_driver(driver);
return usb_show_dynids(&usb_drv->dynids, buf); return usb_show_dynids(&usb_drv->dynids, buf);
} }
static ssize_t store_new_id(struct device_driver *driver, static ssize_t new_id_store(struct device_driver *driver,
const char *buf, size_t count) const char *buf, size_t count)
{ {
struct usb_driver *usb_drv = to_usb_driver(driver); struct usb_driver *usb_drv = to_usb_driver(driver);
return usb_store_new_id(&usb_drv->dynids, driver, buf, count); return usb_store_new_id(&usb_drv->dynids, driver, buf, count);
} }
static DRIVER_ATTR(new_id, S_IRUGO | S_IWUSR, show_dynids, store_new_id); static DRIVER_ATTR_RW(new_id);
/** /*
* store_remove_id - remove a USB device ID from this driver * Remove a USB device ID from this driver
* @driver: target device driver
* @buf: buffer for scanning device ID data
* @count: input size
*
* Removes a dynamic usb device ID from this driver.
*
* Return: @count on success. A negative error code otherwise.
*/ */
static ssize_t static ssize_t remove_id_store(struct device_driver *driver, const char *buf,
store_remove_id(struct device_driver *driver, const char *buf, size_t count) size_t count)
{ {
struct usb_dynid *dynid, *n; struct usb_dynid *dynid, *n;
struct usb_driver *usb_driver = to_usb_driver(driver); struct usb_driver *usb_driver = to_usb_driver(driver);
@ -146,7 +139,12 @@ store_remove_id(struct device_driver *driver, const char *buf, size_t count)
spin_unlock(&usb_driver->dynids.lock); spin_unlock(&usb_driver->dynids.lock);
return count; return count;
} }
static DRIVER_ATTR(remove_id, S_IRUGO | S_IWUSR, show_dynids, store_remove_id);
static ssize_t remove_id_show(struct device_driver *driver, char *buf)
{
return new_id_show(driver, buf);
}
static DRIVER_ATTR_RW(remove_id);
static int usb_create_newid_files(struct usb_driver *usb_drv) static int usb_create_newid_files(struct usb_driver *usb_drv)
{ {