[PATCH 5.4 246/320] crypto: omap-aes - Fix broken pm_runtime_and_get() usage

From: Greg Kroah-Hartman
Date: Mon Jan 24 2022 - 14:56:48 EST


From: Heiner Kallweit <hkallweit1@xxxxxxxxx>

commit c2aec59be093bd44627bc4f6bc67e4614a93a7b6 upstream.

This fix is basically the same as 3d6b661330a7 ("crypto: stm32 -
Revert broken pm_runtime_resume_and_get changes"), just for the omap
driver. If the return value isn't used, then pm_runtime_get_sync()
has to be used for ensuring that the usage count is balanced.

Fixes: 1f34cc4a8da3 ("crypto: omap-aes - Fix PM reference leak on omap-aes.c")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Heiner Kallweit <hkallweit1@xxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/crypto/omap-aes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -1318,7 +1318,7 @@ static int omap_aes_suspend(struct devic

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