Staging: rtl8192u: Remove unnecessary variable

This patch detects the cases in which a variable is not modified through
the code and it is used as a return value. The variable is detected and
removed by coccinelle using the following semantic patch:

@@ type T; expression expr; identifier r; constant c; @@

-T r = expr;
... when != r
    when strict
-return r;
+return expr;

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
index c322881d853bd95feeba4eda7f272abf9b3f97e1..69b0e30541861c2a2a5150270f3bf13dcb06a3d4 100644 (file)
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
@@ -471,12 +471,10 @@ static bool HTIOTActIsDisableMCS15(struct ieee80211_device *ieee)
 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device *ieee,
                                                 u8 *PeerMacAddr)
 {
-       bool retValue = false;
-
 #ifdef TODO
        // Apply for 819u only
 #endif
-       return retValue;
+       return false;
 }
 
 /********************************************************************************************************************
@@ -488,11 +486,8 @@ static bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device *ieee,
   * *****************************************************************************************************************/
 static u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device *ieee,
                                     u8 *PeerMacAddr)
-{
-       u8      retValue = false;       // default enable EDCA Turbo mode.
-       // Set specific EDCA parameter for different AP in DM handler.
-
-       return retValue;
+{      /* default enable EDCA Turbo mode. */
+       return false;
 }
 
 /********************************************************************************************************************