diff mbox series

[5.4,067/184] crypto: stm32/cryp - Fix PM reference leak on stm32-cryp.c

Message ID 20210510101952.401442549@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH May 10, 2021, 10:19 a.m. UTC 
From: Shixin Liu <liushixin2@huawei.com>

[ Upstream commit 747bf30fd944f02f341b5f3bc7d97a13f2ae2fbe ]

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/stm32/stm32-cryp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index ba5ea6434f9c..9b3511236ba2 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -537,7 +537,7 @@  static int stm32_cryp_hw_init(struct stm32_cryp *cryp)
 	int ret;
 	u32 cfg, hw_mode;
 
-	pm_runtime_get_sync(cryp->dev);
+	pm_runtime_resume_and_get(cryp->dev);
 
 	/* Disable interrupt */
 	stm32_cryp_write(cryp, CRYP_IMSCR, 0);
@@ -2054,7 +2054,7 @@  static int stm32_cryp_remove(struct platform_device *pdev)
 	if (!cryp)
 		return -ENODEV;
 
-	ret = pm_runtime_get_sync(cryp->dev);
+	ret = pm_runtime_resume_and_get(cryp->dev);
 	if (ret < 0)
 		return ret;