drivers/net/cnic.c: remove invalid reference to list iterator variable

If list_for_each_entry, etc complete a traversal of the list, the iterator
variable ends up pointing to an address at an offset from the list head,
and not a meaningful structure.  Thus this value should not be used after
the end of the iterator.  There does not seem to be a meaningful value to
provide to netdev_warn.  Replace with pr_warn, since pr_err is used
elsewhere.

This problem was found using Coccinelle (http://coccinelle.lip6.fr/).

(cherry picked from commit 022f09784b85396b4ceba954ce28e50de4882281)
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>

diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index ebbf19fcae71e5773d72320e8be19d3af4b2dd05..e2c06642ea1dd6e2932f390ae80037a2a7933a14 100644 (file)
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -537,7 +537,8 @@ int cnic_unregister_driver(int ulp_type)
        }
 
        if (atomic_read(&ulp_ops->ref_count) != 0)
-               netdev_warn(dev->netdev, "Failed waiting for ref count to go to zero\n");
+               pr_warn("%s: Failed waiting for ref count to go to zero\n",
+                       __func__);
        return 0;
 
 out_unlock: