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[ Upstream commit 098333a ] Only CS7 and CS8 are supported but CSIZE is not sanitized after fallthrough from CS5 or CS6 to CS7. Set CSIZE correctly so that userspace knows the effective value. Incorrect CSIZE also results in miscalculation of the frame bits in tty_get_char_size() or in its predecessor where the roughly the same code is directly within uart_update_timeout(). Fixes: c10b133 (tty: serial: Add RDA8810PL UART driver) Cc: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220519081808.3776-4-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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