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-rw-r--r--erts/emulator/test/driver_SUITE_data/otp_9302_drv.c27
1 files changed, 17 insertions, 10 deletions
diff --git a/erts/emulator/test/driver_SUITE_data/otp_9302_drv.c b/erts/emulator/test/driver_SUITE_data/otp_9302_drv.c
index 7c144d20cf..ad29d17f06 100644
--- a/erts/emulator/test/driver_SUITE_data/otp_9302_drv.c
+++ b/erts/emulator/test/driver_SUITE_data/otp_9302_drv.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2011-2013. All Rights Reserved.
+ * Copyright Ericsson AB 2011-2014. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -94,7 +94,7 @@ DRIVER_INIT(otp_9302_drv)
static void stop(ErlDrvData drv_data)
{
Otp9302Data *data = (Otp9302Data *) drv_data;
- if (!data->smp)
+ if (data->msgq.mtx)
erl_drv_mutex_destroy(data->msgq.mtx);
driver_free(data);
}
@@ -114,13 +114,16 @@ static ErlDrvData start(ErlDrvPort port,
driver_system_info(&sys_info, sizeof(ErlDrvSysInfo));
data->smp = sys_info.smp_support;
+ data->msgq.mtx = NULL;
if (!data->smp) {
data->msgq.start = NULL;
data->msgq.end = NULL;
- data->msgq.mtx = erl_drv_mutex_create("");
- if (!data->msgq.mtx) {
- driver_free(data);
- return ERL_DRV_ERROR_GENERAL;
+ if (sys_info.thread_support) {
+ data->msgq.mtx = erl_drv_mutex_create("");
+ if (!data->msgq.mtx) {
+ driver_free(data);
+ return ERL_DRV_ERROR_GENERAL;
+ }
}
}
@@ -143,19 +146,22 @@ static void enqueue_reply(Otp9302AsyncData *adata)
Otp9302MsgQ *msgq = adata->msgq;
adata->next = NULL;
adata->refc++;
- erl_drv_mutex_lock(msgq->mtx);
+ if (msgq->mtx)
+ erl_drv_mutex_lock(msgq->mtx);
if (msgq->end)
msgq->end->next = adata;
else
msgq->end = msgq->start = adata;
msgq->end = adata;
- erl_drv_mutex_unlock(msgq->mtx);
+ if (msgq->mtx)
+ erl_drv_mutex_unlock(msgq->mtx);
}
static void dequeue_replies(Otp9302AsyncData *adata)
{
Otp9302MsgQ *msgq = adata->msgq;
- erl_drv_mutex_lock(msgq->mtx);
+ if (msgq->mtx)
+ erl_drv_mutex_lock(msgq->mtx);
if (--adata->refc == 0)
driver_free(adata);
while (msgq->start) {
@@ -166,7 +172,8 @@ static void dequeue_replies(Otp9302AsyncData *adata)
driver_free(adata);
}
msgq->start = msgq->end = NULL;
- erl_drv_mutex_unlock(msgq->mtx);
+ if (msgq->mtx)
+ erl_drv_mutex_unlock(msgq->mtx);
}
static void async_invoke(void *data)