[PATCH] dmaengine: tegra210-adma: handle pm_runtime_get_sync failure cases

[Navid Emamdoost]

Calling pm_runtime_get_sync increments the counter even in case of
failure, causing incorrect ref count. Call pm_runtime_put if
pm_runtime_get_sync fails.

Signed-off-by: Navid Emamdoost <navid.emamdo...@gmail.com>
---
 drivers/dma/tegra210-adma.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c
index c4ce5dfb149b..899eaaf9fc48 100644
--- a/drivers/dma/tegra210-adma.c
+++ b/drivers/dma/tegra210-adma.c
@@ -659,6 +659,7 @@ static int tegra_adma_alloc_chan_resources(struct dma_chan 
*dc)
        ret = pm_runtime_get_sync(tdc2dev(tdc));
        if (ret < 0) {
                free_irq(tdc->irq, tdc);
+               pm_runtime_put(tdc2dev(tdc));
                return ret;
        }
 
@@ -870,7 +871,7 @@ static int tegra_adma_probe(struct platform_device *pdev)
 
        ret = pm_runtime_get_sync(&pdev->dev);
        if (ret < 0)
-               goto rpm_disable;
+               goto rpm_put;
 
        ret = tegra_adma_init(tdma);
        if (ret)
-- 
2.17.1