qcacld-3.0: Refine target_if_ext_twt_evt.c

Refine target_if_ext_twt_evt.c to remove duplicate conditional
checks.

Also fix some code style errors by adding a blank line return to
last return in the API

Change-Id: I759becd864293b8bec35cb54763bdf4b047537c2
CRs-Fixed: 3402852

components/target_if/twt/src/target_if_ext_twt_evt.c

@@ -80,6 +80,7 @@ target_if_twt_setup_complete_event_handler(ol_scn_t scn, uint8_t *event,
 
 done:
 	qdf_mem_free(data);
+
 	return qdf_status_to_os_return(qdf_status);
 }
 
@@ -129,6 +130,7 @@ target_if_twt_teardown_complete_event_handler(ol_scn_t scn, uint8_t *event,
 
 done:
 	qdf_mem_free(data);
+
 	return qdf_status_to_os_return(qdf_status);
 
 }
@@ -187,6 +189,7 @@ target_if_twt_pause_complete_event_handler(ol_scn_t scn, uint8_t *event,
 
 done:
 	qdf_mem_free(param);
+
 	return qdf_status_to_os_return(qdf_status);
 }
 
@@ -244,6 +247,7 @@ target_if_twt_resume_complete_event_handler(ol_scn_t scn, uint8_t *event,
 
 done:
 	qdf_mem_free(param);
+
 	return qdf_status_to_os_return(qdf_status);
 }
 
@@ -301,6 +305,7 @@ target_if_twt_nudge_complete_event_handler(ol_scn_t scn, uint8_t *event,
 
 done:
 	qdf_mem_free(param);
+
 	return qdf_status_to_os_return(qdf_status);
 }
 
@@ -349,8 +354,8 @@ target_if_twt_notify_event_handler(ol_scn_t scn, uint8_t *event,
 
 done:
 	qdf_mem_free(data);
-	return qdf_status_to_os_return(qdf_status);
 
+	return qdf_status_to_os_return(qdf_status);
 }
 
 static int
@@ -398,6 +403,7 @@ target_if_twt_ack_complete_event_handler(ol_scn_t scn, uint8_t *event,
 
 done:
 	qdf_mem_free(data);
+
 	return qdf_status_to_os_return(qdf_status);
 }
 
@@ -407,11 +413,6 @@ target_if_twt_register_ext_events(struct wlan_objmgr_psoc *psoc)
 	QDF_STATUS status;
 	struct wmi_unified *wmi_handle;
 
-	if (!psoc) {
-		target_if_err("psoc obj is null!");
-		return QDF_STATUS_E_NULL_VALUE;
-	}
-
 	wmi_handle = get_wmi_unified_hdl_from_psoc(psoc);
 	if (!wmi_handle) {
 		target_if_err("wmi_handle is null!");
@@ -497,11 +498,6 @@ target_if_twt_deregister_ext_events(struct wlan_objmgr_psoc *psoc)
 	QDF_STATUS status;
 	struct wmi_unified *wmi_handle;
 
-	if (!psoc) {
-		target_if_err("psoc is NULL!");
-		return QDF_STATUS_E_INVAL;
-	}
-
 	wmi_handle = get_wmi_unified_hdl_from_psoc(psoc);
 	if (!wmi_handle) {
 		target_if_err("wmi_handle is null");