USB: serial: quatech2: fix baud rate overflow

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The requested baud rate is incorrectly truncated to 16 bits so that
line speeds above 65535 bps cannot be set.

Use 32 bits for the rate while rejecting rates outside of
[50,921600] to avoid having the 16-bit divisor overflow.

Fixes: f7a33e608d ("USB: serial: add quatech2 usb to serial driver")
Cc: stable@vger.kernel.org	# 3.5
Cc: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Johan Hovold <johan@kernel.org>

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This commit is contained in:

Johan Hovold 2026-09-15 14:40:12 +02:00

parent afc235a217

commit ec06546b43

1 changed files with 16 additions and 3 deletions

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drivers/usb/serial/quatech2.c

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