From 25b86428356ce99072dcc028840493d7a9edc309 Mon Sep 17 00:00:00 2001
From: Alexey Morozov <31707428+alexey-morozov@users.noreply.github.com>
Date: Thu, 14 Dec 2017 19:04:12 +0100
Subject: [PATCH] uart driver: Remove unnecessary xSemaphoreGive()

avoid unnecessary call of xSemaphoreGive(p_uart_obj[uart_num]->tx_mux);

Merges https://github.com/espressif/esp-idf/pull/1387
---
 components/driver/uart.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/components/driver/uart.c b/components/driver/uart.c
index 2b9642f25..d839a062f 100644
--- a/components/driver/uart.c
+++ b/components/driver/uart.c
@@ -858,7 +858,6 @@ static int uart_tx_all(uart_port_t uart_num, const char* src, size_t size, bool
             offset += send_size;
             uart_enable_tx_intr(uart_num, 1, UART_EMPTY_THRESH_DEFAULT);
         }
-        xSemaphoreGive(p_uart_obj[uart_num]->tx_mux);
     } else {
         while(size) {
             //semaphore for tx_fifo available