ring buffer concurrency

[xhpohanka]

Hi,

there is this sentence in the zephyr ring buffer docs

For the trivial case of one producer and one consumer, concurrency control shouldn’t be needed.

I have a simple case where data received over UART are filled into a ring buffer using ring_buf_put_claim() in an interrupt routine. Then there is a single thread which periodically access the data with ring_buf_get_claim(). I see very rare occurrences when the received data are wrong. After some time I have started to be suspicious about the ring buffer concurrency issue. Can it be the case here? Shouldn't I do ring_buf_get_claim() inside a critical section?

best regards
Jan