pm_runtime_get_sync will increment pm usage counter
even it failed. Forgetting to putting operation will
result in reference leak here. We fix it by replacing
it with pm_runtime_resume_and_get to keep usage counter
balanced.
Fixes: 87244fe5abdf ("dmaengine: rcar-dmac: Add Renesas R-Car Gen2 DMA Controller (DMAC) driver")
Signed-off-by: Zhang Shurong <zhang_shurong@xxxxxxxxxxx>
---
drivers/dma/sh/rcar-dmac.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 0c45ce8c74aa..c1ce3b0ae74d 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1068,7 +1068,7 @@ static int rcar_dmac_alloc_chan_resources(struct dma_chan *chan)
if (ret < 0)
return -ENOMEM;
- return pm_runtime_get_sync(chan->device->dev);
+ return pm_runtime_resume_and_get(chan->device->dev);
}
static void rcar_dmac_free_chan_resources(struct dma_chan *chan)
--
2.39.5
