diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2022-06-09 10:42:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-10 12:52:52 +0300 |
| commit | 54c4862f29725a0a20b09a10f2fa788a973713ee (patch) | |
| tree | 846524fcdc024ca9ae2e37eb9a1a6cfbbbb1b948 /drivers/usb/mtu3/mtu3_gadget_ep0.c | |
| parent | 5e1fa6dd4caa7ce26029427647bc2f424784a559 (diff) | |
| download | linux-54c4862f29725a0a20b09a10f2fa788a973713ee.tar.xz | |
usb: mtu3: implement udc_async_callbacks of gadget operation
Implement udc_async_callbacks hook function to avoid a race when unnbinding
gadget drivers, refer to:
7dc0c55e9f30 ('USB: UDC core: Add udc_async_callbacks gadget op')
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20220609074233.15532-2-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/mtu3/mtu3_gadget_ep0.c')
| -rw-r--r-- | drivers/usb/mtu3/mtu3_gadget_ep0.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/mtu3/mtu3_gadget_ep0.c b/drivers/usb/mtu3/mtu3_gadget_ep0.c index 0ca47212f1ec..7e7013508af6 100644 --- a/drivers/usb/mtu3/mtu3_gadget_ep0.c +++ b/drivers/usb/mtu3/mtu3_gadget_ep0.c @@ -66,7 +66,7 @@ __acquires(mtu->lock) { int ret; - if (!mtu->gadget_driver) + if (!mtu->gadget_driver || !mtu->async_callbacks) return -EOPNOTSUPP; spin_unlock(&mtu->lock); |