hdlc: fix null-deref on allocation failure
authorstephen hemminger <shemming@brocade.com>
Tue, 17 Nov 2015 22:26:06 +0000 (14:26 -0800)
committerDavid S. Miller <davem@davemloft.net>
Wed, 18 Nov 2015 19:58:03 +0000 (14:58 -0500)
commit52d178516dcf61e7a59363a572458c830af6e520
tree2b23b754f77f5aec29282d380f94f2a8f62958dc
parent6f97532ef05e49f1998a09f8359b83d00a7b3229
hdlc: fix null-deref on allocation failure

If alloc_netdev() failed and return NULL, then the next instruction
would dereference it. Found by Coverity.

Compile tested only. Not sure if anyone still uses this driver
(or the whole WAN subsystem).

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/wan/hdlc_fr.c