prism54: Convert wpa_sem in a mutex

The semaphore wpa_sem is used as mutex, convert it to the mutex API

Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Acked-by: Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 6 insertions, 6 deletions

diff --git a/drivers/net/wireless/prism54/isl_ioctl.c b/drivers/net/wireless/prism54/isl_ioctl.c
index 3fb6a7b54038..2d91a56d6a39 100644
--- a/drivers/net/wireless/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/prism54/isl_ioctl.c
@@ -2114,7 +2114,7 @@ prism54_wpa_bss_ie_add(islpci_private *priv, u8 *bssid,
         if (wpa_ie_len > MAX_WPA_IE_LEN)
                 wpa_ie_len = MAX_WPA_IE_LEN;
 
-        down(&priv->wpa_sem);
+        mutex_lock(&priv->wpa_lock);
 
         /* try to use existing entry */
         list_for_each(ptr, &priv->bss_wpa_list) {
@@ -2165,7 +2165,7 @@ prism54_wpa_bss_ie_add(islpci_private *priv, u8 *bssid,
                 kfree(bss);
         }
 
-        up(&priv->wpa_sem);
+        mutex_unlock(&priv->wpa_lock);
 }
 
 static size_t
@@ -2175,7 +2175,7 @@ prism54_wpa_bss_ie_get(islpci_private *priv, u8 *bssid, u8 *wpa_ie)
         struct islpci_bss_wpa_ie *bss = NULL;
         size_t len = 0;
 
-        down(&priv->wpa_sem);
+        mutex_lock(&priv->wpa_lock);
 
         list_for_each(ptr, &priv->bss_wpa_list) {
                 bss = list_entry(ptr, struct islpci_bss_wpa_ie, list);
@@ -2187,7 +2187,7 @@ prism54_wpa_bss_ie_get(islpci_private *priv, u8 *bssid, u8 *wpa_ie)
                 len = bss->wpa_ie_len;
                 memcpy(wpa_ie, bss->wpa_ie, len);
         }
-        up(&priv->wpa_sem);
+        mutex_unlock(&priv->wpa_lock);
 
         return len;
 }
@@ -2196,7 +2196,7 @@ void
 prism54_wpa_bss_ie_init(islpci_private *priv)
 {
         INIT_LIST_HEAD(&priv->bss_wpa_list);
-        sema_init(&priv->wpa_sem, 1);
+        mutex_init(&priv->wpa_lock);
 }
 
 void
diff --git a/drivers/net/wireless/prism54/islpci_dev.h b/drivers/net/wireless/prism54/islpci_dev.h
index 85ddf89967af..8e55a5fcffae 100644
--- a/drivers/net/wireless/prism54/islpci_dev.h
+++ b/drivers/net/wireless/prism54/islpci_dev.h
@@ -178,7 +178,7 @@ typedef struct {
         int wpa; /* WPA mode enabled */
         struct list_head bss_wpa_list;
         int num_bss_wpa;
-        struct semaphore wpa_sem;
+        struct mutex wpa_lock;
         u8 wpa_ie[MAX_WPA_IE_LEN];
         size_t wpa_ie_len;