crypto: stm32/cryp - Fix PM reference leak on stm32-cryp.c

[ 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>

diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index ba5ea6434f9cac93d3af878fda193070006394ba..9b3511236ba25861c1f05988c1f7a73f1956a798 100644 (file)
--- 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;