wimax: checking ERR_PTR vs null

stch_skb is allocated with wimax_gnl_re_state_change_alloc().  That
function returns ERR_PTRs on failure and doesn't return NULL.

Signed-off-by: Dan Carpenter <error27@gmail.com>

diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index 1ed65db..62b1a66 100644 (file)
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -315,7 +315,7 @@ void __wimax_state_change(struct wimax_dev *wimax_dev, enum wimax_st new_state)
                BUG();
        }
        __wimax_state_set(wimax_dev, new_state);
-       if (stch_skb)
+       if (!IS_ERR(stch_skb))
                wimax_gnl_re_state_change_send(wimax_dev, stch_skb, header);
 out:
        d_fnend(3, dev, "(wimax_dev %p new_state %u [old %u]) = void\n",