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Subject[PATCH AUTOSEL 4.19 20/21] crypto: omap-aes - Fix PM reference leak on omap-aes.c
Date
From: Shixin Liu <liushixin2@huawei.com>

[ Upstream commit 1f34cc4a8da34fbb250efb928f9b8c6fe7ee0642 ]

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Signed-off-by: Shixin Liu <liushixin2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/omap-aes.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index a5d6e1a0192b..2288fa6a939e 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -107,7 +107,7 @@ static int omap_aes_hw_init(struct omap_aes_dev *dd)
dd->err = 0;
}

- err = pm_runtime_get_sync(dd->dev);
+ err = pm_runtime_resume_and_get(dd->dev);
if (err < 0) {
dev_err(dd->dev, "failed to get sync: %d\n", err);
return err;
@@ -1159,7 +1159,7 @@ static int omap_aes_probe(struct platform_device *pdev)
pm_runtime_set_autosuspend_delay(dev, DEFAULT_AUTOSUSPEND_DELAY);

pm_runtime_enable(dev);
- err = pm_runtime_get_sync(dev);
+ err = pm_runtime_resume_and_get(dev);
if (err < 0) {
dev_err(dev, "%s: failed to get_sync(%d)\n",
__func__, err);
@@ -1327,7 +1327,7 @@ static int omap_aes_suspend(struct device *dev)

static int omap_aes_resume(struct device *dev)
{
- pm_runtime_get_sync(dev);
+ pm_runtime_resume_and_get(dev);
return 0;
}
#endif
--
2.30.2
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