[WATCHDOG] pcwd_usb.c: fix a NULL pointer dereference

The Coverity checker noted that this resulted in a NULL pointer
reference if we were coming from

        if (usb_pcwd == NULL) {
                printk(KERN_ERR PFX "Out of memory\n");
                    goto error;
        }

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@osdl.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/char/watchdog/pcwd_usb.c b/drivers/char/watchdog/pcwd_usb.c
index 2700c5c45b8a..3fdfda9324fa 100644
--- a/drivers/char/watchdog/pcwd_usb.c
+++ b/drivers/char/watchdog/pcwd_usb.c
@@ -705,7 +705,8 @@ err_out_misc_deregister:
 err_out_unregister_reboot:
         unregister_reboot_notifier(&usb_pcwd_notifier);
 error:
-        usb_pcwd_delete (usb_pcwd);
+        if (usb_pcwd)
+                usb_pcwd_delete(usb_pcwd);
         usb_pcwd_device = NULL;
         return retval;
 }