[Patch] net/sched/sch_generic.c: fix an error pointer

[WANG Cong <wcong@critical-links.com>]

ERR_PTR() ususally encodes an negative errno, not positive.

Note, in the following patch, 'err' is initialized as:

int err = -ENOBUFS;

Signed-off-by: WANG Cong <wcong@critical-links.com>
Cc: David Miller <davem@davemloft.net>
Cc:  Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>

---
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index d355e5e..13afa72 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -468,7 +468,7 @@ struct Qdisc *qdisc_alloc(struct net_device *dev,
struct Qdisc_ops *ops) 
 	return sch;
 errout:
-	return ERR_PTR(-err);
+	return ERR_PTR(err);
 }
 
 struct Qdisc * qdisc_create_dflt(struct net_device *dev, struct
Qdisc_ops *ops,