From: Vladimir Serbinenko <phcoder@gmail.com>
Date: Sat, 24 Jan 2015 19:38:12 +0000 (+0100)
Subject: uhci: Fix null pointer dereference.
X-Git-Tag: 2.02-beta3~541
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9ff9d5a54ead6fba080a08fcb1ff8462b8cf2497;p=thirdparty%2Fgrub.git

uhci: Fix null pointer dereference.

Found by: Coverity scan.
---

diff --git a/grub-core/bus/usb/uhci.c b/grub-core/bus/usb/uhci.c
index a95fdfe07..7c5811fd6 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;