baycom_par dereference before check.

[Dave Jones]

--- linux-2.6.5/drivers/net/hamradio/baycom_par.c~	2004-04-16 22:18:53.000000000 +0100
+++ linux-2.6.5/drivers/net/hamradio/baycom_par.c	2004-04-16 22:19:33.000000000 +0100
@@ -272,9 +272,13 @@
 static void par96_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct net_device *dev = (struct net_device *)dev_id;
-	struct baycom_state *bc = netdev_priv(dev);
+	struct baycom_state *bc;
 
-	if (!dev || !bc || bc->hdrv.magic != HDLCDRV_MAGIC)
+	if (!dev)
+		return;
+
+	bc = netdev_priv(dev);
+	if (!bc || bc->hdrv.magic != HDLCDRV_MAGIC)
 		return;
 
 	baycom_int_freq(bc);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/