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ematch: Fix auto-loading of ematch modules.

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In tcf_em_validate(), after calling request_module() to load the
kind-specific module, set em->ops to NULL before returning -EAGAIN, so
that module_put() is not called again by tcf_em_tree_destroy().

Signed-off-by: Ignacy Gawędzki <ignacy.gawedzki@green-communications.fr>
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ignacy Gawędzki 2015-02-17 20:15:20 +01:00 committed by David S. Miller
parent 54da5a8be3
commit 34eea79e26
1 changed files with 1 additions and 0 deletions
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net/sched/ematch.c
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@ -228,6 +228,7 @@ static int tcf_em_validate(struct tcf_proto *tp,
* to replay the request.
*/
module_put(em->ops->owner);
em->ops = NULL;
err = -EAGAIN;
}
#endif