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CircularBuffer::push() is critical section

pull/1626/head
mtkrtk 2016-04-25 17:36:53 +09:00
parent c5422eed25
commit 50e79a45f8
1 changed files with 2 additions and 0 deletions
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2
libraries/mbed/common/SPI.cpp
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@ -124,10 +124,12 @@ int SPI::queue_transfer(const void *tx_buffer, int tx_length, void *rx_buffer, i
if (_transaction_buffer.full()) { if (_transaction_buffer.full()) {
return -1; // the buffer is full return -1; // the buffer is full
} else { } else {
__disable_irq();
_transaction_buffer.push(transaction); _transaction_buffer.push(transaction);
if (!spi_active(&_spi)) { if (!spi_active(&_spi)) {
dequeue_transaction(); dequeue_transaction();
} }
__enable_irq();
return 0; return 0;
} }
#else #else