From: Dinghao Liu <dinghao.liu@zju.edu.cn>
Date: Sat, 23 May 2020 12:29:09 +0000 (+0800)
Subject: spi: tegra20-slink: Fix runtime PM imbalance on error
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=faedcc17ad183acfa5d74758ebc4f21aef341f11;p=uclinux-h8%2Flinux.git

spi: tegra20-slink: Fix runtime PM imbalance on error

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>
Link: https://lore.kernel.org/r/20200523122909.25247-1-dinghao.liu@zju.edu.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index 7f4d932dade7..a07b72e9c344 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -1118,6 +1118,7 @@ static int tegra_slink_probe(struct platform_device *pdev)
 	ret = pm_runtime_get_sync(&pdev->dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "pm runtime get failed, e = %d\n", ret);
+		pm_runtime_put_noidle(&pdev->dev);
 		goto exit_pm_disable;
 	}
 	tspi->def_command_reg  = SLINK_M_S;