qcacld-3.0: ipa: Replace explicit comparison to NULL

Per the Linux Kernel coding style, as enforced by the kernel
checkpatch script, pointers should not be explicitly compared to
NULL. Therefore within ipa replace any such comparisons with logical
operations performed on the pointer itself.

Change-Id: I82e4bed12122ad5aea47650f6d75e72a52207883
CRs-Fixed: 2418401

components/ipa/core/src/wlan_ipa_core.c

@@ -1263,13 +1263,13 @@ static QDF_STATUS wlan_ipa_setup_iface(struct wlan_ipa_priv *ipa_ctx,
 	}
 
 	for (i = 0; i < WLAN_IPA_MAX_IFACE; i++) {
-		if (ipa_ctx->iface_context[i].tl_context == NULL) {
+		if (!ipa_ctx->iface_context[i].tl_context) {
 			iface_context = &(ipa_ctx->iface_context[i]);
 			break;
 		}
 	}
 
-	if (iface_context == NULL) {
+	if (!iface_context) {
 		ipa_err("All the IPA interfaces are in use");
 		status = QDF_STATUS_E_NOMEM;
 		QDF_ASSERT(0);
@@ -1280,7 +1280,7 @@ static QDF_STATUS wlan_ipa_setup_iface(struct wlan_ipa_priv *ipa_ctx,
 	tl_context = (void *)cdp_peer_get_vdev_by_sta_id(ipa_ctx->dp_soc,
 							 ipa_ctx->dp_pdev,
 							 sta_id);
-	if (tl_context == NULL) {
+	if (!tl_context) {
 		ipa_err("Not able to get TL context sta_id: %d", sta_id);
 		status = QDF_STATUS_E_INVAL;
 		goto end;
@@ -1886,7 +1886,7 @@ static QDF_STATUS __wlan_ipa_wlan_evt(qdf_netdev_t net_dev, uint8_t device_mode,
 				sizeof(qdf_ipa_wlan_hdr_attrib_val_t));
 		msg_ex = qdf_mem_malloc(QDF_IPA_MSG_META_MSG_LEN(&meta));
 
-		if (msg_ex == NULL) {
+		if (!msg_ex) {
 			ipa_err("msg_ex allocation failed");
 			return QDF_STATUS_E_NOMEM;
 		}
@@ -2106,7 +2106,7 @@ wlan_ipa_uc_proc_pending_event(struct wlan_ipa_priv *ipa_ctx, bool is_loading)
 
 	qdf_list_remove_front(&ipa_ctx->pending_event,
 			(qdf_list_node_t **)&pending_event);
-	while (pending_event != NULL) {
+	while (pending_event) {
 		struct wlan_objmgr_pdev *pdev = ipa_ctx->pdev;
 		struct wlan_objmgr_psoc *psoc = wlan_pdev_get_psoc(pdev);
 		struct wlan_objmgr_vdev *vdev =
@@ -2428,7 +2428,7 @@ QDF_STATUS wlan_ipa_send_mcc_scc_msg(struct wlan_ipa_priv *ipa_ctx,
 	/* Send SCC/MCC Switching event to IPA */
 	QDF_IPA_MSG_META_MSG_LEN(&meta) = sizeof(*msg);
 	msg = qdf_mem_malloc(QDF_IPA_MSG_META_MSG_LEN(&meta));
-	if (msg == NULL) {
+	if (!msg) {
 		ipa_err("msg allocation failed");
 		return QDF_STATUS_E_NOMEM;
 	}

components/ipa/core/src/wlan_ipa_stats.c

@@ -538,7 +538,7 @@ static void wlan_ipa_print_session_info(struct wlan_ipa_priv *ipa_ctx)
 	i = 0;
 	qdf_list_peek_front(&ipa_ctx->pending_event,
 			(qdf_list_node_t **)&event);
-	while (event != NULL) {
+	while (event) {
 		ipa_info("PENDING EVENT[%d]: EVT:%s, sta_id:%d, MAC:%pM",
 			 i, wlan_ipa_wlan_event_to_str(event->type),
 			 event->sta_id, event->mac_addr);