[PATCH AUTOSEL 5.4 24/34] usb: musb: fix PM reference leak in musb_irq_work()

[Sasha Levin]

From: Bixuan Cui <cuibixuan@xxxxxxxxxx>

[ Upstream commit 9535b99533904e9bc1607575aa8e9539a55435d7 ]

pm_runtime_get_sync will increment pm usage counter even it failed.
thus a pairing decrement is needed.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Bixuan Cui <cuibixuan@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210408091836.55227-1-cuibixuan@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/usb/musb/musb_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 166f68f639c2..70ef603f7bb9 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1932,7 +1932,7 @@ static void musb_irq_work(struct work_struct *data)
 	struct musb *musb = container_of(data, struct musb, irq_work.work);
 	int error;
 
-	error = pm_runtime_get_sync(musb->controller);
+	error = pm_runtime_resume_and_get(musb->controller);
 	if (error < 0) {
 		dev_err(musb->controller, "Could not enable: %i\n", error);
 
-- 
2.30.2