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>

diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 694132e04af697a4b78518708d0e6471046223bc..4e7d1d0a23401d3d3601ac671d5ba1d60aac7399 100644 (file)
--- 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;
                }