Component/bt: fix get attr value error after prepare write
@@ -359,6 +359,7 @@ void gatt_process_exec_write_req (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, U
tGATT_IF gatt_if;
UINT16 conn_id;
UINT16 queue_num = 0;
+ BOOLEAN is_first = TRUE;
BOOLEAN is_prepare_write_valid = FALSE;
BOOLEAN is_need_dequeue_sr_cmd = FALSE;
tGATT_PREPARE_WRITE_RECORD *prepare_record = NULL;
@@ -420,6 +421,11 @@ void gatt_process_exec_write_req (tGATT_TCB *p_tcb, UINT8 op_code, UINT16 len, U
queue_data = fixed_queue_dequeue(prepare_record->queue);
if (is_prepare_write_valid){
if((queue_data->p_attr->p_value != NULL) && (queue_data->p_attr->p_value->attr_val.attr_val != NULL)){
+ if(is_first) {
+ //clear attr_val.attr_len before handle prepare write data
+ queue_data->p_attr->p_value->attr_val.attr_len = 0;
+ is_first = FALSE;
+ }
memcpy(queue_data->p_attr->p_value->attr_val.attr_val+queue_data->offset, queue_data->value, queue_data->len);
//don't forget to increase the attribute value length in the gatts database.
queue_data->p_attr->p_value->attr_val.attr_len += queue_data->len;
