From: Bixuan Cui cuibixuan@huawei.com
[ 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@huawei.com Signed-off-by: Bixuan Cui cuibixuan@huawei.com Link: https://lore.kernel.org/r/20210408091836.55227-1-cuibixuan@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- 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 fc0457db62e1..8f09a387b773 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -2070,7 +2070,7 @@ 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);