From: Shang XiaoJing <shangxiaojing@huawei.com>

svs_init01() calls pm_runtime_get_sync() and added fail path as
svs_init01_finish to put usage_counter. However, pm_runtime_get_sync()
will increment usage_counter even it failed. Fix it by replacing it with
pm_runtime_resume_and_get() to keep usage counter balanced.

Fixes: 681a02e95000 ("soc: mediatek: SVS: introduce MTK SVS engine")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Signed-off-by: Roger Lu <roger.lu@mediatek.com>
---
 drivers/soc/mediatek/mtk-svs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/mediatek/mtk-svs.c b/drivers/soc/mediatek/mtk-svs.c
index dacfee4a0b32..af3a12e29e78 100644
--- a/drivers/soc/mediatek/mtk-svs.c
+++ b/drivers/soc/mediatek/mtk-svs.c
@@ -1326,7 +1326,7 @@ static int svs_init01(struct svs_platform *svsp)
 				svsb->pm_runtime_enabled_count++;
 			}
 
-			ret = pm_runtime_get_sync(svsb->opp_dev);
+			ret = pm_runtime_resume_and_get(svsb->opp_dev);
 			if (ret < 0) {
 				dev_err(svsb->dev, "mtcmos on fail: %d\n", ret);
 				goto svs_init01_resume_cpuidle;
-- 
2.18.0

Il 26/12/22 10:42, Roger Lu ha scritto:
> From: Shang XiaoJing <shangxiaojing@huawei.com>
> 
> svs_init01() calls pm_runtime_get_sync() and added fail path as
> svs_init01_finish to put usage_counter. However, pm_runtime_get_sync()
> will increment usage_counter even it failed. Fix it by replacing it with
> pm_runtime_resume_and_get() to keep usage counter balanced.
> 
> Fixes: 681a02e95000 ("soc: mediatek: SVS: introduce MTK SVS engine")
> Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
> Signed-off-by: Roger Lu <roger.lu@mediatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>