mxser: cleanup LSR handling in mxser_receive_chars

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mxser_interrupt is a bit confusing as it passes a pointer to LSR
variable ("status") to mxser_receive_chars. That function can indeed
update the LCR variable. Make this clear by not passing a variable by
reference, instead, return updated status. And change its type
accordingly -- to u8.

Note that the next patches will rework ISR so that even the definition
of status will be u8 soon too.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210618061516.662-13-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jiri Slaby 2021-06-18 08:14:18 +02:00 • committed by Greg Kroah-Hartman

parent cef222cbff

commit 1551780603

1 changed files with 21 additions and 19 deletions

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drivers/tty/mxser.c

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