Re: [PATCH RFC 2/2] OMAP : serial : Check for error in get_context_loss_count

From: Kevin Hilman
Date: Thu Jan 19 2012 - 18:00:08 EST


Shubhrajyoti D <shubhrajyoti@xxxxxx> writes:

> In serial_omap_runtime_resume in case of errors returned by
> get_context_loss_count print a warning and do a restore.
>
> Signed-off-by: Shubhrajyoti D <shubhrajyoti@xxxxxx>

These two patches should be combined into a single patch.

Also, please Cc Govindraj since he's the maintainer of this driver and
should Ack.

Thanks,

Kevin

> ---
> applies on Tony's uart branch
>
> drivers/tty/serial/omap-serial.c | 10 ++++++++--
> 1 files changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
> index 29fe6fd..6008612 100644
> --- a/drivers/tty/serial/omap-serial.c
> +++ b/drivers/tty/serial/omap-serial.c
> @@ -1602,10 +1602,16 @@ static int serial_omap_runtime_resume(struct device *dev)
>
> if (up) {
> if (pdata->get_context_loss_count) {
> - u32 loss_cnt = pdata->get_context_loss_count(dev);
> + int loss_cnt = pdata->get_context_loss_count(dev);
>
> - if (up->context_loss_cnt != loss_cnt)
> + if (loss_cnt < 0) {
> + dev_err(dev,
> + "get_context_loss_count failed : %d\n",
> + loss_cnt);
> serial_omap_restore_context(up);
> + } else if (up->context_loss_cnt != loss_cnt) {
> + serial_omap_restore_context(up);
> + }
> }
>
> /* Errata i291 */
--
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