* Re: [PATCH 09/69] leds: lp5523: check return value of lp5xx_read and jump to cleanup code
[not found] ` <20210503115736.2104747-10-gregkh@linuxfoundation.org>
@ 2021-05-03 19:36 ` Jacek Anaszewski
2021-05-13 15:25 ` Greg Kroah-Hartman
0 siblings, 1 reply; 2+ messages in thread
From: Jacek Anaszewski @ 2021-05-03 19:36 UTC (permalink / raw)
To: Greg Kroah-Hartman, linux-kernel
Cc: Phillip Potter, stable, Linux LED Subsystem, Pavel Machek
On 5/3/21 1:56 PM, Greg Kroah-Hartman wrote:
> From: Phillip Potter <phil@philpotter.co.uk>
>
> Check return value of lp5xx_read and if non-zero, jump to code at end of
> the function, causing lp5523_stop_all_engines to be executed before
> returning the error value up the call chain. This fixes the original
> commit (248b57015f35) which was reverted due to the University of Minnesota
> problems.
>
> Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
> Cc: stable <stable@vger.kernel.org>
> Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> ---
> drivers/leds/leds-lp5523.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
> index 5036d7d5f3d4..b1590cb4a188 100644
> --- a/drivers/leds/leds-lp5523.c
> +++ b/drivers/leds/leds-lp5523.c
> @@ -305,7 +305,9 @@ static int lp5523_init_program_engine(struct lp55xx_chip *chip)
>
> /* Let the programs run for couple of ms and check the engine status */
> usleep_range(3000, 6000);
> - lp55xx_read(chip, LP5523_REG_STATUS, &status);
> + ret = lp55xx_read(chip, LP5523_REG_STATUS, &status);
> + if (ret)
> + goto out;
> status &= LP5523_ENG_STATUS_MASK;
>
> if (status != LP5523_ENG_STATUS_MASK) {
>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>, linux-leds@vger.kernel.org
--
Best regards,
Jacek Anaszewski
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH 09/69] leds: lp5523: check return value of lp5xx_read and jump to cleanup code
2021-05-03 19:36 ` [PATCH 09/69] leds: lp5523: check return value of lp5xx_read and jump to cleanup code Jacek Anaszewski
@ 2021-05-13 15:25 ` Greg Kroah-Hartman
0 siblings, 0 replies; 2+ messages in thread
From: Greg Kroah-Hartman @ 2021-05-13 15:25 UTC (permalink / raw)
To: Jacek Anaszewski
Cc: linux-kernel, Phillip Potter, stable, Linux LED Subsystem, Pavel Machek
On Mon, May 03, 2021 at 09:36:14PM +0200, Jacek Anaszewski wrote:
> On 5/3/21 1:56 PM, Greg Kroah-Hartman wrote:
> > From: Phillip Potter <phil@philpotter.co.uk>
> >
> > Check return value of lp5xx_read and if non-zero, jump to code at end of
> > the function, causing lp5523_stop_all_engines to be executed before
> > returning the error value up the call chain. This fixes the original
> > commit (248b57015f35) which was reverted due to the University of Minnesota
> > problems.
> >
> > Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
> > Cc: stable <stable@vger.kernel.org>
> > Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
> > Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> > ---
> > drivers/leds/leds-lp5523.c | 4 +++-
> > 1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
> > index 5036d7d5f3d4..b1590cb4a188 100644
> > --- a/drivers/leds/leds-lp5523.c
> > +++ b/drivers/leds/leds-lp5523.c
> > @@ -305,7 +305,9 @@ static int lp5523_init_program_engine(struct lp55xx_chip *chip)
> > /* Let the programs run for couple of ms and check the engine status */
> > usleep_range(3000, 6000);
> > - lp55xx_read(chip, LP5523_REG_STATUS, &status);
> > + ret = lp55xx_read(chip, LP5523_REG_STATUS, &status);
> > + if (ret)
> > + goto out;
> > status &= LP5523_ENG_STATUS_MASK;
> > if (status != LP5523_ENG_STATUS_MASK) {
> >
>
> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Thanks for the review!
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2021-05-13 15:25 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <20210503115736.2104747-1-gregkh@linuxfoundation.org>
[not found] ` <20210503115736.2104747-10-gregkh@linuxfoundation.org>
2021-05-03 19:36 ` [PATCH 09/69] leds: lp5523: check return value of lp5xx_read and jump to cleanup code Jacek Anaszewski
2021-05-13 15:25 ` Greg Kroah-Hartman
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).