From 37f7212148cf1d796135cdf8d0c7fee13067674b Mon Sep 17 00:00:00 2001
From: Dinghao Liu <dinghao.liu@zju.edu.cn>
Date: Fri, 22 May 2020 18:40:06 +0800
Subject: [PATCH] mtd: rawnand: omap_elm: Fix runtime PM imbalance on error
Git-commit: 37f7212148cf1d796135cdf8d0c7fee13067674b
Patch-mainline: v5.8-rc1
References: git-fixes
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.liu@zju.edu.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200522104008.28340-1-dinghao.liu@zju.edu.cn
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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;
--
2.16.4