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Don't hold if refcount on an stcb when it is not needed.

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This improves the consistency with other parts of the code.
This commit is contained in:
Michael Tuexen 2017-07-04 18:04:44 +00:00
parent 57521c21b1
commit afffa1a9ad
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=320650
1 changed files with 10 additions and 10 deletions
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20
sys/netinet/sctp_input.c
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@ -2149,23 +2149,23 @@ sctp_process_cookie_new(struct mbuf *m, int iphlen, int offset,
* cookie was in flight. Only recourse is to abort the
* association.
*/
atomic_add_int(&stcb->asoc.refcnt, 1);
op_err = sctp_generate_cause(SCTP_CAUSE_OUT_OF_RESC, "");
sctp_abort_association(inp, (struct sctp_tcb *)NULL, m, iphlen,
src, dst, sh, op_err,
mflowtype, mflowid,
vrf_id, port);
#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
atomic_add_int(&stcb->asoc.refcnt, 1);
SCTP_TCB_UNLOCK(stcb);
SCTP_SOCKET_LOCK(so, 1);
SCTP_TCB_LOCK(stcb);
atomic_subtract_int(&stcb->asoc.refcnt, 1);
#endif
(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
SCTP_FROM_SCTP_INPUT + SCTP_LOC_18);
#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
SCTP_SOCKET_UNLOCK(so, 1);
#endif
atomic_subtract_int(&stcb->asoc.refcnt, 1);
return (NULL);
}
/* process the INIT-ACK info (my info) */
@ -2186,36 +2186,36 @@ sctp_process_cookie_new(struct mbuf *m, int iphlen, int offset,
else
retval = 0;
if (retval < 0) {
atomic_add_int(&stcb->asoc.refcnt, 1);
#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
atomic_add_int(&stcb->asoc.refcnt, 1);
SCTP_TCB_UNLOCK(stcb);
SCTP_SOCKET_LOCK(so, 1);
SCTP_TCB_LOCK(stcb);
atomic_subtract_int(&stcb->asoc.refcnt, 1);
#endif
(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
SCTP_FROM_SCTP_INPUT + SCTP_LOC_19);
#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
SCTP_SOCKET_UNLOCK(so, 1);
#endif
atomic_subtract_int(&stcb->asoc.refcnt, 1);
return (NULL);
}
/* load all addresses */
if (sctp_load_addresses_from_init(stcb, m,
init_offset + sizeof(struct sctp_init_chunk), initack_offset,
src, dst, init_src, port)) {
atomic_add_int(&stcb->asoc.refcnt, 1);
#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
atomic_add_int(&stcb->asoc.refcnt, 1);
SCTP_TCB_UNLOCK(stcb);
SCTP_SOCKET_LOCK(so, 1);
SCTP_TCB_LOCK(stcb);
atomic_subtract_int(&stcb->asoc.refcnt, 1);
#endif
(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
SCTP_FROM_SCTP_INPUT + SCTP_LOC_20);
#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
SCTP_SOCKET_UNLOCK(so, 1);
#endif
atomic_subtract_int(&stcb->asoc.refcnt, 1);
return (NULL);
}
/*
@ -2234,18 +2234,18 @@ sctp_process_cookie_new(struct mbuf *m, int iphlen, int offset,
/* auth HMAC failed, dump the assoc and packet */
SCTPDBG(SCTP_DEBUG_AUTH1,
"COOKIE-ECHO: AUTH failed\n");
atomic_add_int(&stcb->asoc.refcnt, 1);
#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
atomic_add_int(&stcb->asoc.refcnt, 1);
SCTP_TCB_UNLOCK(stcb);
SCTP_SOCKET_LOCK(so, 1);
SCTP_TCB_LOCK(stcb);
atomic_subtract_int(&stcb->asoc.refcnt, 1);
#endif
(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
SCTP_FROM_SCTP_INPUT + SCTP_LOC_21);
#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
SCTP_SOCKET_UNLOCK(so, 1);
#endif
atomic_subtract_int(&stcb->asoc.refcnt, 1);
return (NULL);
} else {
/* remaining chunks checked... good to go */
@ -2295,18 +2295,18 @@ sctp_process_cookie_new(struct mbuf *m, int iphlen, int offset,
break;
#endif
default:
atomic_add_int(&stcb->asoc.refcnt, 1);
#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
atomic_add_int(&stcb->asoc.refcnt, 1);
SCTP_TCB_UNLOCK(stcb);
SCTP_SOCKET_LOCK(so, 1);
SCTP_TCB_LOCK(stcb);
atomic_subtract_int(&stcb->asoc.refcnt, 1);
#endif
(void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
SCTP_FROM_SCTP_INPUT + SCTP_LOC_22);
#if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
SCTP_SOCKET_UNLOCK(so, 1);
#endif
atomic_subtract_int(&stcb->asoc.refcnt, 1);
return (NULL);
}