qcacld-3.0: target_if: 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 target_if replace any such comparisons with
logical operations performed on the pointer itself.

Change-Id: Id9b5185713b91b67ddf1d965a6c7e52508558d82
CRs-Fixed: 2418397

components/target_if/disa/src/target_if_disa.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -35,7 +35,7 @@ target_if_encrypt_decrypt_event_handler(ol_scn_t scn_handle, uint8_t *data,
 	struct wlan_objmgr_psoc *psoc;
 	wmi_unified_t wmi_handle;
 
-	if (data == NULL) {
+	if (!data) {
 		target_if_err("%s: invalid pointer", __func__);
 		return -EINVAL;
 	}

components/target_if/pmo/src/target_if_pmo_lphb.c

@@ -113,7 +113,7 @@ QDF_STATUS target_if_pmo_send_lphb_tcp_pkt_filter(struct wlan_objmgr_psoc *psoc,
 	wmi_hb_set_tcp_pkt_filter_cmd_fixed_param hb_tcp_filter_fp = {0};
 	wmi_unified_t wmi_handle;
 
-	if (ts_lphb_tcp_filter == NULL) {
+	if (!ts_lphb_tcp_filter) {
 		target_if_err("TCP PKT FILTER LPHB configuration is NULL");
 		return QDF_STATUS_E_FAILURE;
 	}