[PATCH -next] mtd: rawnand: Fix PM disable depth imbalance in tegra_nand_probe

[Zhang Qilong]

The pm_runtime_enable will increase power disable depth. Thus
a pairing decrement is needed on the error handling path to
keep it balanced according to context.

Fixes:d7d9f8ec77fe9 ("mtd: rawnand: add NVIDIA Tegra NAND Flash controller driver")
Signed-off-by: Zhang Qilong <zhangqilong3 at huawei.com>
---
 drivers/mtd/nand/raw/tegra_nand.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/tegra_nand.c b/drivers/mtd/nand/raw/tegra_nand.c
index e12f9f580a15..a9b9031ce616 100644
--- a/drivers/mtd/nand/raw/tegra_nand.c
+++ b/drivers/mtd/nand/raw/tegra_nand.c
@@ -1181,7 +1181,7 @@ static int tegra_nand_probe(struct platform_device *pdev)
 	pm_runtime_enable(&pdev->dev);
 	err = pm_runtime_resume_and_get(&pdev->dev);
 	if (err)
-		return err;
+		goto err_dis_pm;
 
 	err = reset_control_reset(rst);
 	if (err) {
@@ -1215,6 +1215,8 @@ static int tegra_nand_probe(struct platform_device *pdev)
 err_put_pm:
 	pm_runtime_put_sync_suspend(ctrl->dev);
 	pm_runtime_force_suspend(ctrl->dev);
+err_dis_pm:
+	pm_runtime_disable(&pdev->dev);
 	return err;
 }
 
-- 
2.25.1