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authorJulia Lawall <julia@diku.dk>2010-05-27 16:29:05 -0700
committerDavid S. Miller <davem@davemloft.net>2010-05-28 01:57:18 -0700
commit89dc0be68f4aaa06dba1b5d6ea9ecfe8fa9b7bf0 (patch)
treeaededffd13259b3d9b76a423fd98b811327e9597 /drivers/net/hamradio
parent84e5b9f75b48fe4a1e4ee72698230701439d0805 (diff)
downloadlinux-89dc0be68f4aaa06dba1b5d6ea9ecfe8fa9b7bf0.tar.gz
drivers/net/hamradio: Eliminate a NULL pointer dereference
At the point of the print, dev is NULL.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression E,E1;
identifier f;
statement S1,S2,S3;
@@

if ((E == NULL && ...) || ...)
{
  ... when != if (...) S1 else S2
      when != E = E1
* E->f
  ... when any
  return ...;
}
else S3
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hamradio')
-rw-r--r--drivers/net/hamradio/yam.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 694132e04af6..4e7d1d0a2340 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -1151,8 +1151,7 @@ static int __init yam_init_driver(void)
 		dev = alloc_netdev(sizeof(struct yam_port), name,
 				   yam_setup);
 		if (!dev) {
-			printk(KERN_ERR "yam: cannot allocate net device %s\n",
-			       dev->name);
+			pr_err("yam: cannot allocate net device\n");
 			err = -ENOMEM;
 			goto error;
 		}