diff options
| author | Christian Gromm <christian.gromm@microchip.com> | 2015-12-22 10:52:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-07 17:34:58 -0800 |
| commit | 61f6bfcbaee6b49f3147ba5a3fd8d9803272b433 (patch) | |
| tree | a90429454b437c7e32d52fcf046a14f6cf16f351 /drivers/staging/most | |
| parent | b522e61fb6329b68e6da8f237f21fc83a1d8ace2 (diff) | |
| download | linux-61f6bfcbaee6b49f3147ba5a3fd8d9803272b433.tar.bz2 | |
staging: most: remove redundant mutexes
This patch removes the mutexes stop_task_mutex and deregister mutex,
since they can safely be left out.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/most')
| -rw-r--r-- | drivers/staging/most/mostcore/core.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c index 31ea3a5e485e..b085f0ac5b8c 100644 --- a/drivers/staging/most/mostcore/core.c +++ b/drivers/staging/most/mostcore/core.c @@ -65,7 +65,6 @@ struct most_c_obj { struct most_c_aim_obj aim1; struct list_head trash_fifo; struct task_struct *hdm_enqueue_task; - struct mutex stop_task_mutex; wait_queue_head_t hdm_fifo_wq; }; @@ -93,8 +92,6 @@ struct most_inst_obj { _mbo; \ }) -static struct mutex deregister_mutex; - /* ___ ___ * ___C H A N N E L___ */ @@ -737,10 +734,8 @@ static void destroy_most_inst_obj(struct most_inst_obj *inst) struct most_c_obj *c, *tmp; list_for_each_entry_safe(c, tmp, &inst->channel_list, list) { - mutex_lock(&deregister_mutex); flush_trash_fifo(c); flush_channel_fifos(c); - mutex_unlock(&deregister_mutex); kobject_put(&c->kobj); } kobject_put(&inst->kobj); @@ -1575,11 +1570,9 @@ int most_stop_channel(struct most_interface *iface, int id, if (c->aim0.refs + c->aim1.refs >= 2) goto out; - mutex_lock(&c->stop_task_mutex); if (c->hdm_enqueue_task) kthread_stop(c->hdm_enqueue_task); c->hdm_enqueue_task = NULL; - mutex_unlock(&c->stop_task_mutex); if (iface->mod) module_put(iface->mod); @@ -1757,7 +1750,6 @@ struct kobject *most_register_interface(struct most_interface *iface) init_completion(&c->cleanup); atomic_set(&c->mbo_ref, 0); mutex_init(&c->start_mutex); - mutex_init(&c->stop_task_mutex); list_add_tail(&c->list, &inst->channel_list); } pr_info("registered new MOST device mdev%d (%s)\n", @@ -1853,7 +1845,6 @@ static int __init most_init(void) pr_info("init()\n"); INIT_LIST_HEAD(&instance_list); INIT_LIST_HEAD(&aim_list); - mutex_init(&deregister_mutex); ida_init(&mdev_id); if (bus_register(&most_bus)) { |