| From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.14 115/127] mtd: rawnand: omap_elm: Fix runtime PM imbalance on error | Date | Thu, 17 Sep 2020 22:12:08 -0400 |
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From: Dinghao Liu <dinghao.liu@zju.edu.cn>
[ Upstream commit 37f7212148cf1d796135cdf8d0c7fee13067674b ]
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 Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/mtd/nand/omap_elm.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/mtd/nand/omap_elm.c b/drivers/mtd/nand/omap_elm.c index a3f32f939cc17..6736777a41567 100644 --- a/drivers/mtd/nand/omap_elm.c +++ b/drivers/mtd/nand/omap_elm.c @@ -421,6 +421,7 @@ 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; -- 2.25.1
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