2 files changed, 4 insertions, 0 deletions

diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index ac4273dddf34..52ec44b828f3 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -13,6 +13,9 @@ static void urb_destroy(struct kref *kref)
 {
         struct urb *urb = to_urb(kref);
 
+        if (urb->transfer_flags & URB_FREE_BUFFER)
+                kfree(urb->transfer_buffer);
+
         kfree(urb);
 }
 
diff --git a/include/linux/usb.h b/include/linux/usb.h
index efce9a4c511c..533c32374e01 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -994,6 +994,7 @@ extern int usb_disabled(void);
 #define URB_ZERO_PACKET         0x0040  /* Finish bulk OUT with short packet */
 #define URB_NO_INTERRUPT        0x0080  /* HINT: no non-error interrupt
                                          * needed */
+#define URB_FREE_BUFFER         0x0100  /* Free transfer buffer with the URB */
 
 struct usb_iso_packet_descriptor {
         unsigned int offset;