This patch replaces a semaphore(txq_thread_started) with a completion.
Struct semaphore txq_thread_started is used to signal completion of txq thread.
It is better to use completion than semaphore for this case.
Signed-off-by: Leo Kim <leo.kim@xxxxxxxxx>
---
drivers/staging/wilc1000/linux_wlan.c | 10 +++++-----
drivers/staging/wilc1000/wilc_wfi_netdevice.h | 3 +--
2 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c
index a858552..2ed2bf3 100644
--- a/drivers/staging/wilc1000/linux_wlan.c
+++ b/drivers/staging/wilc1000/linux_wlan.c
@@ -22,6 +22,7 @@
#include <linux/skbuff.h>
#include <linux/semaphore.h>
+#include <linux/completion.h>
static int dev_state_ev_handler(struct notifier_block *this,
unsigned long event, void *ptr);
@@ -313,12 +314,12 @@ static int linux_wlan_txq_task(void *vp)
vif = netdev_priv(dev);
wl = vif->wilc;
- up(&wl->txq_thread_started);
+ complete(&wl->txq_thread_started);
while (1) {
down(&wl->txq_event);
if (wl->close) {
- up(&wl->txq_thread_started);
+ complete(&wl->txq_thread_started);
while (!kthread_should_stop())
schedule();
@@ -693,8 +694,7 @@ static int wlan_init_locks(struct net_device *dev)
sema_init(&wl->cfg_event, 0);
sema_init(&wl->sync_event, 0);
-
- sema_init(&wl->txq_thread_started, 0);
+ init_completion(&wl->txq_thread_started);
return 0;
}
@@ -731,7 +731,7 @@ static int wlan_initialize_threads(struct net_device *dev)
wilc->close = 0;
return -ENOBUFS;
}
- down(&wilc->txq_thread_started);
+ wait_for_completion(&wilc->txq_thread_started);
return 0;
}
diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
index 3d0ca8e..3a561df6 100644
--- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h
+++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
@@ -179,8 +179,7 @@ struct wilc {
struct semaphore cfg_event;
struct semaphore sync_event;
struct semaphore txq_event;
-
- struct semaphore txq_thread_started;
+ struct completion txq_thread_started;
struct task_struct *txq_thread;
--
1.9.1
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