Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9351982b25ace7ee5ed82b6f4a7ea1151f31d267
Commit: 9351982b25ace7ee5ed82b6f4a7ea1151f31d267
Parent: 80ba80a9bf25d251237694c3fcee850a73324532
Author: Micah Gruber <[EMAIL PROTECTED]>
AuthorDate: Mon Jul 23 16:05:52 2007 +0800
Committer: Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Mon Jul 30 15:44:50 2007 -0400
Fix a potential NULL pointer dereference in write_bulk_callback() in
drivers/net/usb/pegasus.c
This patch fixes a potential null dereference bug where we dereference
pegasus before a null check. This patch simply moves the dereferencing
after the null check.
Signed-off-by: Micah Gruber <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
drivers/net/usb/pegasus.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index a05fd97..04cba6b 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -768,11 +768,13 @@ done:
static void write_bulk_callback(struct urb *urb)
{
pegasus_t *pegasus = urb->context;
- struct net_device *net = pegasus->net;
+ struct net_device *net;
if (!pegasus)
return;
+ net = pegasus->net;
+
if (!netif_device_present(net) || !netif_running(net))
return;
-
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