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* If getting a new port message failed, we must release the port's write sem

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again, or else the port loses capacity.
* This fixes bug #2720.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30517 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2009-04-30 19:07:38 +00:00
parent 819c98a383
commit c39ecc608f
1 changed files with 5 additions and 1 deletions
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6
src/system/kernel/port.cpp
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@ -1192,8 +1192,12 @@ writev_port_etc(port_id id, int32 msgCode, const iovec *msgVecs,
return status;
msg = get_port_msg(msgCode, bufferSize);
if (msg == NULL)
if (msg == NULL) {
// Give up our slot in the queue again, and let someone else try and fail
// TODO: try to free some resources and try again?
release_sem(cachedSem);
return B_NO_MEMORY;
}
// sender credentials
msg->sender = geteuid();