pkt_sched: fix warning in net/sched/sch_hfsc.c

this warning:

  net/sched/sch_hfsc.c: In function ‘hfsc_enqueue’:
  net/sched/sch_hfsc.c:1577: warning: ‘err’ may be used uninitialized in this function

triggers because GCC does not recognize the (correct) error flow
between hfsc_classify(), 'cl' and 'err'.

Annotate it.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 51dd3f401623..613179c9969c 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1563,7 +1563,7 @@ static int
 hfsc_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
         struct hfsc_class *cl;
-        int err;
+        int uninitialized_var(err);
 
         cl = hfsc_classify(skb, sch, &err);
         if (cl == NULL) {