USB: gadget: audit sysfs attribute permissions
Convert all USB gadget sysfs attributes to use the _RO or _RW variants,
to make them easier to audit and ensure that the permissions are
correct.
Note, two are left using the DEVICE_ATTR() macro, as there is no
DEVICE_ATTR_WO() in Linus's tree, that will happen after 3.12-rc1 is
out, a follow-on patch will be sent then.
Reviewed-by: Felipe Balbi <balbi@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--
drivers/usb/gadget/composite.c | 8 +++-----
drivers/usb/gadget/dummy_hcd.c | 8 ++++----
drivers/usb/gadget/f_mass_storage.c | 14 ++++++--------
drivers/usb/gadget/net2272.c | 4 ++--
drivers/usb/gadget/net2280.c | 18 +++++++++---------
drivers/usb/gadget/storage_common.c | 25 ++++++++++++-------------
drivers/usb/gadget/udc-core.c | 14 +++++++-------
7 files changed, 43 insertions(+), 48 deletions(-)
diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c
index 546bfda..59891b1 100644
--- a/drivers/usb/gadget/udc-core.c
+++ b/drivers/usb/gadget/udc-core.c
@@ -470,31 +470,31 @@
}
static DEVICE_ATTR(soft_connect, S_IWUSR, NULL, usb_udc_softconn_store);
-static ssize_t usb_gadget_state_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t state_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct usb_udc *udc = container_of(dev, struct usb_udc, dev);
struct usb_gadget *gadget = udc->gadget;
return sprintf(buf, "%s\n", usb_state_string(gadget->state));
}
-static DEVICE_ATTR(state, S_IRUGO, usb_gadget_state_show, NULL);
+static DEVICE_ATTR_RO(state);
#define USB_UDC_SPEED_ATTR(name, param) \
-ssize_t usb_udc_##param##_show(struct device *dev, \
+ssize_t name##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
struct usb_udc *udc = container_of(dev, struct usb_udc, dev); \
return snprintf(buf, PAGE_SIZE, "%s\n", \
usb_speed_string(udc->gadget->param)); \
} \
-static DEVICE_ATTR(name, S_IRUGO, usb_udc_##param##_show, NULL)
+static DEVICE_ATTR_RO(name)
static USB_UDC_SPEED_ATTR(current_speed, speed);
static USB_UDC_SPEED_ATTR(maximum_speed, max_speed);
#define USB_UDC_ATTR(name) \
-ssize_t usb_udc_##name##_show(struct device *dev, \
+ssize_t name##_show(struct device *dev, \
struct device_attribute *attr, char *buf) \
{ \
struct usb_udc *udc = container_of(dev, struct usb_udc, dev); \
@@ -502,7 +502,7 @@
\
return snprintf(buf, PAGE_SIZE, "%d\n", gadget->name); \
} \
-static DEVICE_ATTR(name, S_IRUGO, usb_udc_##name##_show, NULL)
+static DEVICE_ATTR_RO(name)
static USB_UDC_ATTR(is_otg);
static USB_UDC_ATTR(is_a_peripheral);