staging: rtl8723bs: hal:Remove comparison to NULL in rtl8723bs_xmit.c

Remove comparison to NULL in file rtl8723bs_xmit.c. Suggested by Coccinelle.
Signed-off-by: Himadri Pandya <himadri18.07@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c

@@ -63,7 +63,7 @@ static s32 rtl8723_dequeue_writeport(struct adapter *padapter)
 	else
 		pxmitbuf = dequeue_pending_xmitbuf(pxmitpriv);
 
-	if (pxmitbuf == NULL)
+	if (!pxmitbuf)
 		return true;
 
 	deviceId = ffaddr2deviceId(pdvobjpriv, pxmitbuf->ff_hwaddr);
@@ -283,8 +283,7 @@ static s32 xmit_xmitframes(struct adapter *padapter, struct xmit_priv *pxmitpriv
 
 				/*  check xmit_buf size enough or not */
 				txlen = txdesc_size + rtw_wlan_pkt_size(pxmitframe);
-				if (
-					(NULL == pxmitbuf) ||
+				if(	!pxmitbuf ||
 					((_RND(pxmitbuf->len, 8) + txlen) > max_xmit_len) ||
 					(k >= (rtw_hal_sdio_max_txoqt_free_space(padapter)-1))
 				) {
@@ -307,7 +306,7 @@ static s32 xmit_xmitframes(struct adapter *padapter, struct xmit_priv *pxmitpriv
 					}
 
 					pxmitbuf = rtw_alloc_xmitbuf(pxmitpriv);
-					if (pxmitbuf == NULL) {
+					if (!pxmitbuf) {
 #ifdef DBG_XMIT_BUF
 						DBG_871X_LEVEL(_drv_err_, "%s: xmit_buf is not enough!\n", __func__);
 #endif