5.15-stable review patch. If anyone has any objections, please let me know.
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From: Roy Luo royluo@google.com
commit 73ea73affe8622bdf292de898da869d441da6a9d upstream.
The KOBJ_CHANGE uevent is sent before gadget unbind is actually executed, resulting in inaccurate uevent emitted at incorrect timing (the uevent would have USB_UDC_DRIVER variable set while it would soon be removed). Move the KOBJ_CHANGE uevent to the end of the unbind function so that uevent is sent only after the change has been made.
Fixes: 2ccea03a8f7e ("usb: gadget: introduce UDC Class") Cc: stable@vger.kernel.org Signed-off-by: Roy Luo royluo@google.com Link: https://lore.kernel.org/r/20231128221756.2591158-1-royluo@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/gadget/udc/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -1451,8 +1451,6 @@ static void usb_gadget_remove_driver(str dev_dbg(&udc->dev, "unregistering UDC driver [%s]\n", udc->driver->function);
- kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE); - usb_gadget_disconnect(udc->gadget); usb_gadget_disable_async_callbacks(udc); if (udc->gadget->irq) @@ -1462,6 +1460,8 @@ static void usb_gadget_remove_driver(str
udc->driver = NULL; udc->gadget->dev.driver = NULL; + + kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE); }
/**