staging: rtl8723bs: hal: Remove comparison to NULL in rtl8723bs_recv.c

Remove comparison to NULL in file rtl8723bs_recv.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_recv.c

@@ -170,7 +170,7 @@ static void rtl8723bs_c2h_packet_handler(struct adapter *padapter,
 	/* DBG_871X("+%s() length =%d\n", __func__, length); */
 
 	tmp = rtw_zmalloc(length);
-	if (tmp == NULL)
+	if (!tmp)
 		return;
 
 	memcpy(tmp, pbuf, length);
@@ -424,7 +424,7 @@ s32 rtl8723bs_init_recv_priv(struct adapter *padapter)
 
 	n = NR_RECVBUFF * sizeof(struct recv_buf) + 4;
 	precvpriv->pallocated_recv_buf = rtw_zmalloc(n);
-	if (precvpriv->pallocated_recv_buf == NULL) {
+	if (!precvpriv->pallocated_recv_buf) {
 		res = _FAIL;
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("alloc recv_buf fail!\n"));
 		goto exit;
@@ -439,7 +439,7 @@ s32 rtl8723bs_init_recv_priv(struct adapter *padapter)
 		if (res == _FAIL)
 			break;
 
-		if (precvbuf->pskb == NULL) {
+		if (!precvbuf->pskb) {
 			SIZE_PTR tmpaddr = 0;
 			SIZE_PTR alignment = 0;
 
@@ -453,7 +453,7 @@ s32 rtl8723bs_init_recv_priv(struct adapter *padapter)
 				skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
 			}
 
-			if (precvbuf->pskb == NULL) {
+			if (!precvbuf->pskb) {
 				DBG_871X("%s: alloc_skb fail!\n", __func__);
 			}
 		}