From 1abf9ae719f6de71fb90d3169d575630be612619 Mon Sep 17 00:00:00 2001 From: Binoy Jayan Date: Thu, 8 Jun 2017 15:33:03 +0530 Subject: [PATCH] mwifiex: Replace semaphore async_sem with mutex The semaphore 'async_sem' is used as a simple mutex, so it should be written as one. Semaphores are going away in the future. Signed-off-by: Binoy Jayan Reviewed-by: Arnd Bergmann Signed-off-by: Kalle Valo --- drivers/net/wireless/marvell/mwifiex/cfg80211.c | 2 +- drivers/net/wireless/marvell/mwifiex/main.h | 2 +- drivers/net/wireless/marvell/mwifiex/scan.c | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c index 025bc06a19d6..feb2ce3082d8 100644 --- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c +++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c @@ -3033,7 +3033,7 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, INIT_DELAYED_WORK(&priv->dfs_chan_sw_work, mwifiex_dfs_chan_sw_work_queue); - sema_init(&priv->async_sem, 1); + mutex_init(&priv->async_mutex); /* Register network device */ if (register_netdevice(dev)) { diff --git a/drivers/net/wireless/marvell/mwifiex/main.h b/drivers/net/wireless/marvell/mwifiex/main.h index c37fb2606502..f8cf3079ac7d 100644 --- a/drivers/net/wireless/marvell/mwifiex/main.h +++ b/drivers/net/wireless/marvell/mwifiex/main.h @@ -629,7 +629,7 @@ struct mwifiex_private { struct dentry *dfs_dev_dir; #endif u16 current_key_index; - struct semaphore async_sem; + struct mutex async_mutex; struct cfg80211_scan_request *scan_request; u8 cfg_bssid[6]; struct wps wps; diff --git a/drivers/net/wireless/marvell/mwifiex/scan.c b/drivers/net/wireless/marvell/mwifiex/scan.c index ce6936d0c5c0..ae9630b49342 100644 --- a/drivers/net/wireless/marvell/mwifiex/scan.c +++ b/drivers/net/wireless/marvell/mwifiex/scan.c @@ -2809,7 +2809,7 @@ int mwifiex_request_scan(struct mwifiex_private *priv, { int ret; - if (down_interruptible(&priv->async_sem)) { + if (mutex_lock_interruptible(&priv->async_mutex)) { mwifiex_dbg(priv->adapter, ERROR, "%s: acquire semaphore fail\n", __func__); @@ -2825,7 +2825,7 @@ int mwifiex_request_scan(struct mwifiex_private *priv, /* Normal scan */ ret = mwifiex_scan_networks(priv, NULL); - up(&priv->async_sem); + mutex_unlock(&priv->async_mutex); return ret; }