serial: imx: always wake up the processes in the TX callback

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The current code only wakes up the processes when the circle
buffer has less data then the WAKEUP_CHARS.

But sometimes, the circle buffer may has data more then the WAKEUP_CHARS,
in such case, the processes will hang.

This patch makes it always wakes up the processes in the TX callback.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Huang Shijie 2014-01-22 16:23:37 +08:00 • committed by Greg Kroah-Hartman

parent c972d806fd

commit 2ad28e3efe

1 changed files with 1 additions and 2 deletions

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drivers/tty/serial/imx.c

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