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net/sched: avoid double free on matchall reoffload

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Avoid freeing cls_mall.rule twice when failing to setup flow_action
offload used in the hardware intermediate representation. This is
achieved by returning 0 when the setup fails but the skip software
flag has not been set.

Fixes: f00cbf1968 ("net/sched: use the hardware intermediate representation for matchall")
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Pieter Jansen van Vuuren <[email protected]>
Reviewed-by: Jakub Kicinski <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Pieter Jansen van Vuuren 2019-05-08 15:56:07 -07:00 • committed by David S. Miller
commit 5f05836831
1 changed files with 1 additions and 0 deletions
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1
net/sched/cls_matchall.c
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@ -308,6 +308,7 @@ static int mall_reoffload(struct tcf_proto *tp, bool add, tc_setup_cb_t *cb,
NL_SET_ERR_MSG_MOD(extack, "Failed to setup flow action");
return err;
}
return 0;
}
err = cb(TC_SETUP_CLSMATCHALL, &cls_mall, cb_priv);