From: Alexander Beregalov <a.beregalov@gmail.com>
To: gregkh@suse.de
Cc: linux-kernel@vger.kernel.org,
Alexander Beregalov <a.beregalov@gmail.com>
Subject: [PATCH] USB: FHCI: avoid NULL pointer dereference
Date: Thu, 7 Jan 2010 04:17:32 +0300 [thread overview]
Message-ID: <1262827052-29329-1-git-send-email-a.beregalov@gmail.com> (raw)
Assign fhci only if usb is not NULL.
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
---
drivers/usb/host/fhci-hcd.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c
index 0951818..78e7c3c 100644
--- a/drivers/usb/host/fhci-hcd.c
+++ b/drivers/usb/host/fhci-hcd.c
@@ -242,9 +242,10 @@ err:
static void fhci_usb_free(void *lld)
{
struct fhci_usb *usb = lld;
- struct fhci_hcd *fhci = usb->fhci;
+ struct fhci_hcd *fhci;
if (usb) {
+ fhci = usb->fhci;
fhci_config_transceiver(fhci, FHCI_PORT_POWER_OFF);
fhci_ep0_free(usb);
kfree(usb->actual_frame);
--
1.6.6
reply other threads:[~2010-01-07 1:17 UTC|newest]
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