Bluetooth: hidp: Fix memory leak of cached report descriptor

Free the cached HID report descriptor on thread terminate.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 7e19a01..26f0d10 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -764,6 +764,7 @@
 
 	up_write(&hidp_session_sem);
 
+	kfree(session->rd_data);
 	kfree(session);
 	return 0;
 }