On Wed, 28 Apr 2021 16:52:24 +0200
Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> wrote:
> Commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
> added pm_runtime_resume_and_get() in order to automatically handle
> dev->power.usage_count decrement on errors.
>
> Use the new API, in order to cleanup the error check logic.
>
> Reviewed-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
> ---
> drivers/media/platform/exynos-gsc/gsc-m2m.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c b/drivers/media/platform/exynos-gsc/gsc-m2m.c
> index 27a3c92c73bc..09551e96ac15 100644
> --- a/drivers/media/platform/exynos-gsc/gsc-m2m.c
> +++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c
> @@ -58,7 +58,7 @@ static int gsc_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
> struct gsc_ctx *ctx = q->drv_priv;
> int ret;
>
> - ret = pm_runtime_get_sync(&ctx->gsc_dev->pdev->dev);
> + ret = pm_runtime_resume_and_get(&ctx->gsc_dev->pdev->dev);
> return ret > 0 ? 0 : ret;
return pm_runtime_resume_and_get()
as
static inline int pm_runtime_resume_and_get(struct device *dev)
{
int ret;
ret = __pm_runtime_resume(dev, RPM_GET_PUT);
if (ret < 0) {
pm_runtime_put_noidle(dev);
return ret;
}
return 0;
}
Can't return >= 0
> }
>
