USB: wusb: correctly check size of security descriptor.

Reported-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c
index 4516c36436e6..edcd2d756037 100644
--- a/drivers/usb/wusbcore/security.c
+++ b/drivers/usb/wusbcore/security.c
@@ -205,15 +205,15 @@ int wusb_dev_sec_add(struct wusbhc *wusbhc,
         const void *itr, *top;
         char buf[64];
 
-        secd = kmalloc(sizeof(struct usb_security_descriptor), GFP_KERNEL);
+        secd = kmalloc(sizeof(*secd), GFP_KERNEL);
         if (secd == NULL) {
                 result = -ENOMEM;
                 goto out;
         }
 
         result = usb_get_descriptor(usb_dev, USB_DT_SECURITY,
-                                    0, secd, sizeof(struct usb_security_descriptor));
-        if (result < sizeof(secd)) {
+                                    0, secd, sizeof(*secd));
+        if (result < sizeof(*secd)) {
                 dev_err(dev, "Can't read security descriptor or "
                         "not enough data: %d\n", result);
                 goto out;