serial_core: Update buffer overrun statistics.

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Currently, serial drivers don't report buffer overruns. When a buffer overrun
occurs, tty_insert_flip_char returns 0, and no attempt is made to insert that
same character again (i.e. it is lost). This patch reports buffer overruns via
the buf_overrun field in the port's icount structure.

Signed-off-by: Corbin Atkinson <corbin.atkinson@xxxxxx>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Corbin 2012-05-23 09:37:31 -05:00 • committed by Greg Kroah-Hartman

parent 7d0b066fbb

commit dabfb351db

1 changed files with 4 additions and 2 deletions

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drivers/tty/serial/serial_core.c

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