| Message ID | 20200605025207.65719-1-navid.emamdoost@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | gpio: arizona: handle pm_runtime_get_sync failure case | expand |
On Thu, Jun 04, 2020 at 09:52:07PM -0500, Navid Emamdoost wrote: > Calling pm_runtime_get_sync increments the counter even in case of > failure, causing incorrect ref count. Call pm_runtime_put if > pm_runtime_get_sync fails. > > Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> > --- Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Thanks, Charles
On Fri, Jun 5, 2020 at 4:52 AM Navid Emamdoost <navid.emamdoost@gmail.com> wrote: > Calling pm_runtime_get_sync increments the counter even in case of > failure, causing incorrect ref count. Call pm_runtime_put if > pm_runtime_get_sync fails. > > Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Patch applied for fixes. Yours, Linus Walleij
diff --git a/drivers/gpio/gpio-arizona.c b/drivers/gpio/gpio-arizona.c index 5640efe5e750..7520a13b4c7c 100644 --- a/drivers/gpio/gpio-arizona.c +++ b/drivers/gpio/gpio-arizona.c @@ -106,6 +106,7 @@ static int arizona_gpio_direction_out(struct gpio_chip *chip, ret = pm_runtime_get_sync(chip->parent); if (ret < 0) { dev_err(chip->parent, "Failed to resume: %d\n", ret); + pm_runtime_put(chip->parent); return ret; } }
Calling pm_runtime_get_sync increments the counter even in case of failure, causing incorrect ref count. Call pm_runtime_put if pm_runtime_get_sync fails. Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> --- drivers/gpio/gpio-arizona.c | 1 + 1 file changed, 1 insertion(+)