staging: rtl8723bs: core: Use !x in place of NULL comparison.

Avoid NULL comparison, compare using boolean operator.

Issue found using coccinelle.
Signed-off-by: Vatsala Narang <vatsalanarang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/core/rtw_io.c

@@ -156,7 +156,7 @@ int rtw_init_io_priv(struct adapter *padapter, void (*set_intf_ops)(struct adapt
 	struct io_priv *piopriv = &padapter->iopriv;
 	struct intf_hdl *pintf = &piopriv->intf;
 
-	if (set_intf_ops == NULL)
+	if (!set_intf_ops)
 		return _FAIL;
 
 	piopriv->padapter = padapter;

drivers/staging/rtl8723bs/core/rtw_sta_mgt.c

@@ -316,7 +316,7 @@ u32 rtw_free_stainfo(struct adapter *padapter, struct sta_info *psta)
 	struct	sta_priv *pstapriv = &padapter->stapriv;
 	struct hw_xmit *phwxmit;
 
-	if (psta == NULL)
+	if (!psta)
 		goto exit;
 
 
@@ -520,7 +520,7 @@ struct sta_info *rtw_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
 	u8 *addr;
 	u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 
-	if (hwaddr == NULL)
+	if (!hwaddr)
 		return NULL;
 
 	if (IS_MCAST(hwaddr))
@@ -565,7 +565,7 @@ u32 rtw_init_bcmc_stainfo(struct adapter *padapter)
 
 	psta = rtw_alloc_stainfo(pstapriv, bcast_addr);
 
-	if (psta == NULL) {
+	if (!psta) {
 		res = _FAIL;
 		RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("rtw_alloc_stainfo fail"));
 		goto exit;