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Subject[2.6 patch] net/tipc/port.c: fix NULL dereference
The correct order is: NULL check before dereference

Spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>

--- linux-2.6/net/tipc/port.c.old 2006-11-01 00:37:58.000000000 +0100
+++ linux-2.6/net/tipc/port.c 2006-11-01 00:38:27.000000000 +0100
@@ -1136,11 +1136,12 @@
int res = -EINVAL;

p_ptr = tipc_port_lock(ref);
+ if (!p_ptr)
+ return -EINVAL;
+
dbg("tipc_publ %u, p_ptr = %x, conn = %x, scope = %x, "
"lower = %u, upper = %u\n",
ref, p_ptr, p_ptr->publ.connected, scope, seq->lower, seq->upper);
- if (!p_ptr)
- return -EINVAL;
if (p_ptr->publ.connected)
goto exit;
if (seq->lower > seq->upper)
-
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