rtl8192u: Remove unused semaphore rf_sem
The semaphore 'rf_sem' in rtl8192u has no users, hence removing it.
Signed-off-by: Binoy Jayan <binoy.jayan@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/rtl8192u/r8192U.h b/drivers/staging/rtl8192u/r8192U.h
index 65587ac..821afc0 100644
--- a/drivers/staging/rtl8192u/r8192U.h
+++ b/drivers/staging/rtl8192u/r8192U.h
@@ -880,7 +880,6 @@
short crcmon;
struct mutex wx_mutex;
- struct semaphore rf_sem; /* Used to lock rf write operation */
u8 rf_type; /* 0: 1T2R, 1: 2T4R */
RT_RF_TYPE_819xU rf_chip;
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index f9c465c..dd0970f 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -2377,7 +2377,6 @@
spin_lock_init(&priv->tx_lock);
spin_lock_init(&priv->irq_lock);
mutex_init(&priv->wx_mutex);
- sema_init(&priv->rf_sem, 1);
mutex_init(&priv->mutex);
}