[Backport v3.7-branch] serial: uart_async_rx: Avoid possible division by zero #76372
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Ensures that config->but_cnt is not zero. Fixes #66800 CID #338107 Signed-off-by: Flavio Ceolin <[email protected]> (cherry picked from commit 5822267)
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nashif
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Aug 6, 2024
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Backport 5822267 from #75905.
Fixes #66800.