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c2bcc85c6df3

Backout changeset 3c485407dec4a716f9bafd8d97668f2ed2cf567f

if(!rt_mutex_acquire(&UART_WriteMutex, TM_INFINITE )){

int prevstate;

prevstate=uartDevWriteBuf_plc_state;

uartDevWriteBuf_plc_state = LOCKED;

rt_mutex_release(&UART_WriteMutex);

%(publish_code)s

/* unlock plc buffer */

uartDevWriteBuf_plc_state = FULL;

/* wakeup task */

rt_task_unblock(&UART_task);

}