serial: Fix crash if the minimum rate of the device is > 9600 baud

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In that situation if the old rate is invalid and the new rate is invalid
and the chip cannot do 9600 baud we report zero, which makes all the
drivers explode.

Instead force the rate based on min/max

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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Alan Cox 2010-01-04 16:26:21 +00:00 • committed by Greg Kroah-Hartman

parent 4547be7809

commit 16ae2a877b

1 changed files with 12 additions and 5 deletions

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drivers/serial/serial_core.c

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