diff options
| author |   Bixuan Cui <cuibixuan@huawei.com> | 2021-04-08 17:18:36 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-09 16:02:44 +0200 |
| commit | 9535b99533904e9bc1607575aa8e9539a55435d7 (patch) | |
| tree | bcc21045eeafc1e797bc1eaa9904521775734a3b /drivers/usb/musb/musb_core.c | |
| parent | usb: gadget: tegra-xudc: Fix possible use-after-free in tegra_xudc_remove() (diff) | |
| download | wireguard-linux-9535b99533904e9bc1607575aa8e9539a55435d7.tar.xz wireguard-linux-9535b99533904e9bc1607575aa8e9539a55435d7.zip | |
usb: musb: fix PM reference leak in musb_irq_work()
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>
Diffstat (limited to 'drivers/usb/musb/musb_core.c')
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
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); |