The pm_runtime_get_sync() internally increments the
dev->power.usage_count without decrementing it, even on errors.
replace it by the new pm_runtime_resume_and_get(), introduced by:
commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
in order to properly decrement the usage counter and avoid memory
leaks.
While here, check if the PM runtime was caught during
chipset probing time.
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
---
drivers/media/platform/rockchip/rga/rga.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c
index 9d122429706e..bf3fd71ec3af 100644
--- a/drivers/media/platform/rockchip/rga/rga.c
+++ b/drivers/media/platform/rockchip/rga/rga.c
@@ -866,7 +866,9 @@ static int rga_probe(struct platform_device *pdev)
goto unreg_video_dev;
}
- pm_runtime_get_sync(rga->dev);
+ ret = pm_runtime_resume_and_get(rga->dev);
+ if (ret < 0)
+ goto unreg_video_dev;
rga->version.major = (rga_read(rga, RGA_VERSION_INFO) >> 24) & 0xFF;
rga->version.minor = (rga_read(rga, RGA_VERSION_INFO) >> 20) & 0x0F;
--
2.30.2
Hi Mauro,
On Sat, 2021-04-24 at 08:44 +0200, Mauro Carvalho Chehab wrote:
> The pm_runtime_get_sync() internally increments the
> dev->power.usage_count without decrementing it, even on errors.
> replace it by the new pm_runtime_resume_and_get(), introduced by:
> commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
> in order to properly decrement the usage counter and avoid memory
> leaks.
>
> While here, check if the PM runtime was caught during
> chipset probing time.
>
> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
> ---
> drivers/media/platform/rockchip/rga/rga.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
The commit log "media" mdk-mdp" is wrong here.
Maybe you can squash this commit with media: rga-buf: use pm_runtime_resume_and_get()?
Thanks,
Ezequiel