CircularBuffer::push() is critical section

2016-04-25 17:36:53 +09:00 · 2016-04-25 17:36:53 +09:00 · 50e79a45f8
parent c5422eed25
commit 50e79a45f8
1 changed files with 2 additions and 0 deletions
--- a/libraries/mbed/common/SPI.cpp
+++ b/libraries/mbed/common/SPI.cpp
@ -124,10 +124,12 @@ int SPI::queue_transfer(const void *tx_buffer, int tx_length, void *rx_buffer, i
    if (_transaction_buffer.full()) {
        return -1; // the buffer is full
    } else {
+        __disable_irq();
        _transaction_buffer.push(transaction);
        if (!spi_active(&_spi)) {
            dequeue_transaction();
        }
+        __enable_irq();
        return 0;
    }
 #else