[PATCH v2] mfd: arizona: Use pm_runtime_resume_and_get() to prevent refcnt leak

Liang He posted 1 patch 2 years, 8 months ago
drivers/mfd/arizona-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[PATCH v2] mfd: arizona: Use pm_runtime_resume_and_get() to prevent refcnt leak
Posted by Liang He 2 years, 8 months ago
In arizona_clk32k_enable(), we should use pm_runtime_resume_and_get()
as pm_runtime_get_sync() will increase the refcnt even when it
returns an error.

Signed-off-by: Liang He <windhl@126.com>
---
 changelog:
 v1: add missing pm_runtime_put_sync()
 v2: use pm_runtime_resume_and_get()

 drivers/mfd/arizona-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index cbf1dd90b70d..b1c53e040771 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -45,7 +45,7 @@ int arizona_clk32k_enable(struct arizona *arizona)
 	if (arizona->clk32k_ref == 1) {
 		switch (arizona->pdata.clk32k_src) {
 		case ARIZONA_32KZ_MCLK1:
-			ret = pm_runtime_get_sync(arizona->dev);
+			ret = pm_runtime_resume_and_get(arizona->dev);
 			if (ret != 0)
 				goto err_ref;
 			ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK1]);
-- 
2.25.1
Re: [PATCH v2] mfd: arizona: Use pm_runtime_resume_and_get() to prevent refcnt leak
Posted by Lee Jones 2 years, 7 months ago
On Thu, 05 Jan 2023, Liang He wrote:

> In arizona_clk32k_enable(), we should use pm_runtime_resume_and_get()
> as pm_runtime_get_sync() will increase the refcnt even when it
> returns an error.
> 
> Signed-off-by: Liang He <windhl@126.com>
> ---
>  changelog:
>  v1: add missing pm_runtime_put_sync()
>  v2: use pm_runtime_resume_and_get()
> 
>  drivers/mfd/arizona-core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks

-- 
Lee Jones [李琼斯]
Re: [PATCH v2] mfd: arizona: Use pm_runtime_resume_and_get() to prevent refcnt leak
Posted by Charles Keepax 2 years, 8 months ago
On Thu, Jan 05, 2023 at 02:10:55PM +0800, Liang He wrote:
> In arizona_clk32k_enable(), we should use pm_runtime_resume_and_get()
> as pm_runtime_get_sync() will increase the refcnt even when it
> returns an error.
> 
> Signed-off-by: Liang He <windhl@126.com>
> ---

Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>

Thanks,
Charles