[PATCH] mtd: rawnand: Fix runtime PM imbalance on error

[Dinghao Liu]

pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao....@zju.edu.cn>
---
 drivers/mtd/nand/raw/omap_elm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/nand/raw/omap_elm.c b/drivers/mtd/nand/raw/omap_elm.c
index 3fa0e2cbbe53..078b1022ac2a 100644
--- a/drivers/mtd/nand/raw/omap_elm.c
+++ b/drivers/mtd/nand/raw/omap_elm.c
@@ -411,6 +411,7 @@ static int elm_probe(struct platform_device *pdev)
        pm_runtime_enable(&pdev->dev);
        if (pm_runtime_get_sync(&pdev->dev) < 0) {
                ret = -EINVAL;
+               pm_runtime_put_sync(&pdev->dev);
                pm_runtime_disable(&pdev->dev);
                dev_err(&pdev->dev, "can't enable clock\n");
                return ret;
-- 
2.17.1