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net: Introduce sk_clone_lock() error path routine

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When handling problems in cloning a socket with the sk_clone_locked()
function we need to perform several steps that were open coded in it and
its callers, so introduce a routine to avoid this duplication:
sk_free_unlock_clone().

Cc: Cong Wang <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: Gerrit Renker <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-03-01 16:35:08 -03:00 • committed by David S. Miller
commit 94352d4509
3 changed files with 13 additions and 10 deletions
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6
net/dccp/minisocks.c
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@ -119,11 +119,7 @@ struct sock *dccp_create_openreq_child(const struct sock *sk,
* Activate features: initialise CCIDs, sequence windows etc.
*/
if (dccp_feat_activate_values(newsk, &dreq->dreq_featneg)) {
/* It is still raw copy of parent, so invalidate
* destructor and make plain sk_free() */
newsk->sk_destruct = NULL;
bh_unlock_sock(newsk);
sk_free(newsk);
sk_free_unlock_clone(newsk);
return NULL;
}
dccp_init_xmit_timers(newsk);