From: Wang Xiaojun <wangxiaojun11@huawei.com>
To: <vkoul@kernel.org>, <dan.j.williams@intel.com>
Cc: <dmaengine@vger.kernel.org>
Subject: [PATCH] dmaengine: ti: edma: Fix reference count leaks due to pm_runtime_get_sync
Date: Mon, 23 Nov 2020 21:59:28 +0800 [thread overview]
Message-ID: <20201123135928.2702845-1-wangxiaojun11@huawei.com> (raw)
On calling pm_runtime_get_sync() the reference count of the device
is incremented. In case of failure, should decrement the reference
count before returning the error. So we fixed it by replacing it
with pm_runtime_resume_and_get.
Signed-off-by: Wang Xiaojun <wangxiaojun11@huawei.com>
---
drivers/dma/ti/edma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/ti/edma.c b/drivers/dma/ti/edma.c
index 35d81bd857f1..38af8b596e1c 100644
--- a/drivers/dma/ti/edma.c
+++ b/drivers/dma/ti/edma.c
@@ -2399,7 +2399,7 @@ static int edma_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, ecc);
pm_runtime_enable(dev);
- ret = pm_runtime_get_sync(dev);
+ ret = pm_runtime_resume_and_get(dev);
if (ret < 0) {
dev_err(dev, "pm_runtime_get_sync() failed\n");
pm_runtime_disable(dev);
--
2.25.1
next reply other threads:[~2020-11-23 13:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-23 13:59 Wang Xiaojun [this message]
2020-11-24 17:24 ` [PATCH] dmaengine: ti: edma: Fix reference count leaks due to pm_runtime_get_sync Vinod Koul
2020-11-25 6:36 ` Peter Ujfalusi
2020-12-11 13:35 ` Vinod Koul
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