From b3f20d4bd6568f9123aad8ddfc00b569a906fbc4 Mon Sep 17 00:00:00 2001
From: Ville Juven <ville.juven@unikie.com>
Date: Mon, 13 Nov 2023 15:09:48 +0200
Subject: [PATCH] uart_tcsendbreak: Remove cancel point, as tcsendbreak is not
 one

Reference:
https://pubs.opengroup.org/onlinepubs/009695399/functions/xsh_chap02_09.html
---
 drivers/serial/serial.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/drivers/serial/serial.c b/drivers/serial/serial.c
index b3ea7e6881..0ae62730d9 100644
--- a/drivers/serial/serial.c
+++ b/drivers/serial/serial.c
@@ -500,20 +500,6 @@ static int uart_tcsendbreak(FAR uart_dev_t *dev, FAR struct file *filep,
 {
   int ret;
 
-  /* tcsendbreak is a cancellation point */
-
-  if (enter_cancellation_point())
-    {
-#ifdef CONFIG_CANCELLATION_POINTS
-      /* If there is a pending cancellation, then do not perform
-       * the wait.  Exit now with ECANCELED.
-       */
-
-      leave_cancellation_point();
-      return -ECANCELED;
-#endif
-    }
-
   /* REVISIT: Do we need to perform the equivalent of tcdrain() before
    * beginning the Break to avoid corrupting the transmit data? If so, note
    * that just calling uart_tcdrain() here would create a race condition,
@@ -553,7 +539,6 @@ static int uart_tcsendbreak(FAR uart_dev_t *dev, FAR struct file *filep,
       ret = -ENOTTY;
     }
 
-  leave_cancellation_point();
   return ret;
 }