From: Navid Emamdoost <navid.emamdoost@gmail.com>
To: Mark Brown <broonie@kernel.org>, Orson Zhai <orsonzhai@gmail.com>,
Baolin Wang <baolin.wang7@gmail.com>,
Chunyan Zhang <zhang.lyra@gmail.com>,
linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: emamd001@umn.edu, wu000273@umn.edu, kjlu@umn.edu,
smccaman@umn.edu, Navid Emamdoost <navid.emamdoost@gmail.com>
Subject: [PATCH] spi: sprd: call pm_runtime_put if pm_runtime_get_sync fails
Date: Tue, 2 Jun 2020 00:19:58 -0500 [thread overview]
Message-ID: <20200602051959.60440-1-navid.emamdoost@gmail.com> (raw)
Call to pm_runtime_get_sync increments counter even in case of
failure leading to incorrect ref count.
Call pm_runtime_put_noidle if pm_runtime_get_sync fails.
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
---
drivers/spi/spi-sprd.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/spi/spi-sprd.c b/drivers/spi/spi-sprd.c
index 6678f1cbc566..860032af4b98 100644
--- a/drivers/spi/spi-sprd.c
+++ b/drivers/spi/spi-sprd.c
@@ -1018,6 +1018,7 @@ static int sprd_spi_remove(struct platform_device *pdev)
ret = pm_runtime_get_sync(ss->dev);
if (ret < 0) {
dev_err(ss->dev, "failed to resume SPI controller\n");
+ pm_runtime_put_noidle(&pdev->dev);
return ret;
}
--
2.17.1
next reply other threads:[~2020-06-02 5:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-02 5:19 Navid Emamdoost [this message]
2020-06-02 13:59 ` Baolin Wang
2020-06-02 9:05 Markus Elfring
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