Merge branch 'bugfix/multiple_btm_rrm_task' into 'master'

Fix esp_supplicant_common_deinit to post delete btm_rrm_t task.

Closes IDFGH-9553

See merge request espressif/esp-idf!22674

components/wpa_supplicant/esp_supplicant/src/esp_common.c

@@ -40,6 +40,7 @@ struct wpa_supplicant g_wpa_supp;
 static void *s_supplicant_task_hdl = NULL;
 static void *s_supplicant_evt_queue = NULL;
 static void *s_supplicant_api_lock = NULL;
+static bool s_supplicant_task_init_done;
 #define SUPPLICANT_API_LOCK() os_mutex_lock(s_supplicant_api_lock)
 #define SUPPLICANT_API_UNLOCK() os_mutex_unlock(s_supplicant_api_lock)
 #define SUPPLICANT_TASK_STACK_SIZE (6144 + TASK_STACK_SIZE_ADD)
@@ -155,11 +156,6 @@ static void btm_rrm_task(void *pvParameters)
 	os_queue_delete(s_supplicant_evt_queue);
 	s_supplicant_evt_queue = NULL;
 
-	if (s_supplicant_api_lock) {
-		os_semphr_delete(s_supplicant_api_lock);
-		s_supplicant_api_lock = NULL;
-	}
-
 	/* At this point, we completed */
 	os_task_delete(NULL);
 }
@@ -325,7 +321,10 @@ int esp_supplicant_common_init(struct wpa_funcs *wpa_cb)
 
 #if defined(CONFIG_IEEE80211KV) || defined(CONFIG_IEEE80211R) || defined(CONFIG_SAE_PK)
 #ifdef CONFIG_SUPPLICANT_TASK
-	s_supplicant_api_lock = os_recursive_mutex_create();
+	if (!s_supplicant_api_lock) {
+		s_supplicant_api_lock = os_recursive_mutex_create();
+	}
+
 	if (!s_supplicant_api_lock) {
 		wpa_printf(MSG_ERROR, "%s: failed to create Supplicant API lock", __func__);
 		ret = -1;
@@ -345,6 +344,7 @@ int esp_supplicant_common_init(struct wpa_funcs *wpa_cb)
 		ret = -1;
 		goto err;
 	}
+	s_supplicant_task_init_done = true;
 #endif /* CONFIG_SUPPLICANT_TASK */
 #ifdef CONFIG_IEEE80211KV
 	wpas_rrm_reset(wpa_s);
@@ -390,7 +390,8 @@ void esp_supplicant_common_deinit(void)
 	}
 #if defined(CONFIG_IEEE80211KV) || defined(CONFIG_IEEE80211R)
 #ifdef CONFIG_SUPPLICANT_TASK
-	if (!s_supplicant_task_hdl && esp_supplicant_post_evt(SIG_SUPPLICANT_DEL_TASK, 0) != 0) {
+	/* We have failed to create task, delete queue and exit */
+	if (!s_supplicant_task_hdl) {
 		if (s_supplicant_evt_queue) {
 			os_queue_delete(s_supplicant_evt_queue);
 			s_supplicant_evt_queue = NULL;
@@ -399,7 +400,14 @@ void esp_supplicant_common_deinit(void)
 			os_semphr_delete(s_supplicant_api_lock);
 			s_supplicant_api_lock = NULL;
 		}
+	} else if (esp_supplicant_post_evt(SIG_SUPPLICANT_DEL_TASK, 0) != 0) {
+		/* failed to post delete event, just delete event queue and exit */
+		if (s_supplicant_evt_queue) {
+			os_queue_delete(s_supplicant_evt_queue);
+			s_supplicant_evt_queue = NULL;
+		}
 	}
+	s_supplicant_task_init_done = false;
 #endif /* CONFIG_SUPPLICANT_TASK */
 #endif /* defined(CONFIG_IEEE80211KV) || defined(CONFIG_IEEE80211R) */
 }
@@ -790,27 +798,32 @@ cleanup:
 int esp_supplicant_post_evt(uint32_t evt_id, uint32_t data)
 {
 	supplicant_event_t *evt = os_zalloc(sizeof(supplicant_event_t));
-	if (evt == NULL) {
+	if (!evt) {
+		wpa_printf(MSG_ERROR, "Failed to allocated memory");
 		return -1;
 	}
 	evt->id = evt_id;
 	evt->data = data;
 
 	/* Make sure lock exists before taking it */
-	if (s_supplicant_api_lock) {
-		SUPPLICANT_API_LOCK();
-	} else {
+	SUPPLICANT_API_LOCK();
+
+	/* Make sure no event can be sent when deletion event is sent or task not initialized */
+	if (!s_supplicant_task_init_done) {
+		SUPPLICANT_API_UNLOCK();
 		os_free(evt);
 		return -1;
 	}
+
 	if (os_queue_send(s_supplicant_evt_queue, &evt, os_task_ms_to_tick(10)) != TRUE) {
 		SUPPLICANT_API_UNLOCK();
 		os_free(evt);
 		return -1;
 	}
-	if (evt_id != SIG_SUPPLICANT_DEL_TASK) {
-	    SUPPLICANT_API_UNLOCK();
+	if (evt_id == SIG_SUPPLICANT_DEL_TASK) {
+		s_supplicant_task_init_done = false;
 	}
+	SUPPLICANT_API_UNLOCK();
 	return 0;
 }
 #endif /* CONFIG_SUPPLICANT_TASK */