[PATCH] drm/etnaviv: Fix runtime PM imbalance on error

[Yongzhi Liu]

pm_runtime_get_sync() will increase the rumtime PM counter
even it returns an error. Thus a pairing decrement is needed
to prevent refcount leak. Fix this by replacing this API with
pm_runtime_resume_and_get(), which will not change the runtime
PM counter on error.

Signed-off-by: Yongzhi Liu <lyz_cs at pku.edu.cn>
---
 drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index 242a5fd..aa64f45 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -1690,7 +1690,7 @@ static int etnaviv_gpu_bind(struct device *dev, struct device *master,
 		goto out_workqueue;
 
 #ifdef CONFIG_PM
-	ret = pm_runtime_get_sync(gpu->dev);
+	ret = pm_runtime_resume_and_get(gpu->dev);
 #else
 	ret = etnaviv_gpu_clk_enable(gpu);
 #endif
-- 
2.7.4