From 9ff9d5a54ead6fba080a08fcb1ff8462b8cf2497 Mon Sep 17 00:00:00 2001
From: Vladimir Serbinenko <phcoder@gmail.com>
Date: Sat, 24 Jan 2015 20:38:12 +0100
Subject: [PATCH 181/506] uhci: Fix null pointer dereference.

Found by: Coverity scan.
---
 grub-core/bus/usb/uhci.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/grub-core/bus/usb/uhci.c b/grub-core/bus/usb/uhci.c
index a95fdfe..7c5811f 100644
--- a/grub-core/bus/usb/uhci.c
+++ b/grub-core/bus/usb/uhci.c
@@ -625,9 +625,7 @@ grub_uhci_check_transfer (grub_usb_controller_t dev,
       return GRUB_USB_ERR_NONE;
     }
 
-  grub_dprintf ("uhci", "t status=0x%02x\n", errtd->ctrl_status);
-
-  if (!(errtd->ctrl_status & (1 << 23)))
+  if (errtd && !(errtd->ctrl_status & (1 << 23)))
     {
       grub_usb_err_t err = GRUB_USB_ERR_NONE;
 
-- 
2.4.3