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lib: clear caller's pointer when freeing context struct

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The zeromq lib wrapper uses an internal context struct to help
interact with the libfrr event mechanism. When freeing that
context struct, ensure the caller's pointer is also cleared.

Signed-off-by: Mark Stapp <mjs.ietf@gmail.com>
This commit is contained in:
Mark Stapp 2021-08-09 11:55:15 -04:00
parent 1dfa8b8991
commit cf2182c013
1 changed files with 6 additions and 3 deletions
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9
lib/frr_zmq.c
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@ -92,7 +92,8 @@ static int frrzmq_read_msg(struct thread *t)
ZMQ_POLLOUT);
cb->read.thread = NULL;
if (cb->write.cancelled && !cb->write.thread)
XFREE(MTYPE_ZEROMQ_CB, cb);
XFREE(MTYPE_ZEROMQ_CB, *cbp);
return 0;
}
continue;
@ -120,7 +121,8 @@ static int frrzmq_read_msg(struct thread *t)
ZMQ_POLLOUT);
cb->read.thread = NULL;
if (cb->write.cancelled && !cb->write.thread)
XFREE(MTYPE_ZEROMQ_CB, cb);
XFREE(MTYPE_ZEROMQ_CB, *cbp);
return 0;
}
@ -239,7 +241,8 @@ static int frrzmq_write_msg(struct thread *t)
frrzmq_check_events(cbp, &cb->read, ZMQ_POLLIN);
cb->write.thread = NULL;
if (cb->read.cancelled && !cb->read.thread)
XFREE(MTYPE_ZEROMQ_CB, cb);
XFREE(MTYPE_ZEROMQ_CB, *cbp);
return 0;
}
continue;