[2.6.22] Fix a potential NULL pointer dereference in mace_interrupt() in drivers/net/pcmcia/nmclan_cs.c
Subsystems (2)
PATCH 1/1 [2.6.22] Fix a potential NULL pointer dereference in mace_interrupt() in drivers/net/pcmcia/nmclan_cs.c
This patch fixes a potential null dereference bug where we dereference DEV before a null check. This patch simply moves the dereferencing after the null check.
---
--- a/drivers/net/pcmcia/nmclan_cs.c +++ b/drivers/net/pcmcia/nmclan_cs.c @@ -996,7 +996,7 @@
{
struct net_device *dev = (struct net_device *) dev_id; mace_private *lp = netdev_priv(dev);
- kio_addr_t ioaddr = dev->base_addr;
+ kio_addr_t ioaddr;
int status;
int IntrCnt = MACE_MAX_IR_ITERATIONS;
@@ -1006,6 +1006,8 @@
return IRQ_NONE;
}
+ ioaddr = dev->base_addr;
+
if (lp->tx_irq_disabled) {
printk(
(lp->tx_irq_disabled?Quoted 8 lines · Micah Gruber
This patch fixes a potential null dereference bug where we dereference DEV before a null check. This patch simply moves the dereferencing after the null check.
Signed-off-by Micah Gruber <[email protected]>---
---
a/drivers/net/pcmcia/nmclan_cs.c+++b/drivers/net/pcmcia/nmclan_cs.c@@ -996,7 +996,7 @@
PLEASE PLEASE PLEASE fix your mailer.
None of your patches are apply-able via script or patch(1), which is how all Linux maintainers apply patches.
If you want to contribute to the kernel, you -must- figure out how to send patches via email.
Linux kernel development is done almost exclusively through email, so it is very important to get the details right.
Jeff
Quoted 3 lines · Micah Gruber
This patch fixes a potential null dereference bug where we dereference DEV before a null check. This patch simply moves the dereferencing after the null check.
Signed-off-by Micah Gruber <[email protected]>
applied (git-am worked!)