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uas: Verify endpoint descriptors from uas_use_uas_driver()

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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This commit is contained in:
Hans de Goede 2013-11-16 11:37:41 +01:00 committed by Sarah Sharp
parent 74d71aec61
commit 6134041bef
1 changed files with 11 additions and 1 deletions
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12
drivers/usb/storage/uas-detect.h
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@ -70,13 +70,23 @@ static int uas_find_endpoints(struct usb_host_interface *alt,
static int uas_use_uas_driver(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_host_endpoint *eps[4] = { };
struct usb_device *udev = interface_to_usbdev(intf);
unsigned long flags = id->driver_info;
int r, alt;
usb_stor_adjust_quirks(udev, &flags);
if (flags & US_FL_IGNORE_UAS)
return 0;
return uas_find_uas_alt_setting(intf) >= 0;
alt = uas_find_uas_alt_setting(intf);
if (alt < 0)
return 0;
r = uas_find_endpoints(&intf->altsetting[alt], eps);
if (r < 0)
return 0;
return 1;
}