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net: fix __dst_destroy_metrics_generic()

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dst_default_metrics is readonly, we dont want to kfree() it later.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2011-05-24 13:29:50 -04:00 committed by David S. Miller
parent 19694ac88d
commit b30c516f87
1 changed files with 1 additions and 1 deletions
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2
net/core/dst.c
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@ -315,7 +315,7 @@ void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old)
{
unsigned long prev, new;
new = (unsigned long) dst_default_metrics;
new = ((unsigned long) dst_default_metrics) | DST_METRICS_READ_ONLY;
prev = cmpxchg(&dst->_metrics, old, new);
if (prev == old)
kfree(__DST_METRICS_PTR(old));