staging: rtl8188eu: core: Fix comparison to NULL

Convert pointer comparisons to NULL to NULL pointer 'p'
Signed-off-by: Anchal Jain <anchalj109@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_ap.c

@@ -78,7 +78,7 @@ static void update_BCNTIM(struct adapter *padapter)
 	/* update TIM IE */
 	p = rtw_get_ie(pie + _FIXED_IE_LENGTH_, _TIM_IE_, &tim_ielen,
 			pnetwork_mlmeext->IELength - _FIXED_IE_LENGTH_);
-	if (p != NULL && tim_ielen > 0) {
+	if (p && tim_ielen > 0) {
 		tim_ielen += 2;
 		premainder_ie = p+tim_ielen;
 		tim_ie_offset = (int)(p - pie);
@@ -98,7 +98,7 @@ static void update_BCNTIM(struct adapter *padapter)
 				_SUPPORTEDRATES_IE_, &tmp_len,
 				(pnetwork_mlmeext->IELength -
 					_BEACON_IE_OFFSET_));
-		if (p !=  NULL)
+		if (p)
 			offset += tmp_len+2;
 
 		/* DS Parameter Set IE, len = 3 */
@@ -183,7 +183,7 @@ void rtw_add_bcn_ie(struct adapter *padapter, struct wlan_bssid_ex *pnetwork,
 		i += (pIE->Length + 2);
 	}
 
-	if (p != NULL && ielen > 0) {
+	if (p && ielen > 0) {
 		ielen += 2;
 
 		premainder_ie = p+ielen;
@@ -232,7 +232,7 @@ void rtw_remove_bcn_ie(struct adapter *padapter, struct wlan_bssid_ex *pnetwork,
 
 	p = rtw_get_ie(pie + _FIXED_IE_LENGTH_, index, &ielen,
 		       pnetwork->IELength - _FIXED_IE_LENGTH_);
-	if (p != NULL && ielen > 0) {
+	if (p && ielen > 0) {
 		ielen += 2;
 
 		premainder_ie = p+ielen;
@@ -934,14 +934,14 @@ int rtw_check_beacon_data(struct adapter *padapter, u8 *pbuf,  int len)
 	memset(supportRate, 0, NDIS_802_11_LENGTH_RATES_EX);
 	/*  get supported rates */
 	p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _SUPPORTEDRATES_IE_, &ie_len, (pbss_network->IELength - _BEACON_IE_OFFSET_));
-	if (p !=  NULL) {
+	if (p) {
 		memcpy(supportRate, p+2, ie_len);
 		supportRateNum = ie_len;
 	}
 
 	/* get ext_supported rates */
 	p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _EXT_SUPPORTEDRATES_IE_, &ie_len, pbss_network->IELength - _BEACON_IE_OFFSET_);
-	if (p !=  NULL) {
+	if (p) {
 		memcpy(supportRate+supportRateNum, p+2, ie_len);
 		supportRateNum += ie_len;
 	}