| Message ID | 1457878957-22697-2-git-send-email-sjg@chromium.org |
|---|---|
| State | Accepted |
| Delegated to: | Simon Glass |
| Headers | show |
On 13 March 2016 at 08:22, Simon Glass <sjg@chromium.org> wrote: > When 'usb start' is used, block devices are created for any USB flash sticks > and disks, etc. When 'usb stop' is used, these block devices are currently > not removed. > > We don't want old block devices hanging around since they can still be > visible to U-Boot. Therefore, when USB is shut down, remove and unbind all > the block devices created by the USB subsystem. > > Possibly we should unbind all devices which don't cause problems by being > unbound. Most likely we can remove everything except USB controllers, hubs > and emulators. We can consider that later. > > Signed-off-by: Simon Glass <sjg@chromium.org> > Tested-by: Stephen Warren <swarren@nvidia.com> > --- > > Changes in v3: > - Expand the commit message > > Changes in v2: None > > drivers/usb/host/usb-uclass.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) Applied to u-boot-dm.
diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c index 50538e0..69c9a50 100644 --- a/drivers/usb/host/usb-uclass.c +++ b/drivers/usb/host/usb-uclass.c @@ -159,7 +159,11 @@ int usb_stop(void) if (ret && !err) err = ret; } - +#ifdef CONFIG_BLK + ret = blk_unbind_all(IF_TYPE_USB); + if (ret && !err) + err = ret; +#endif #ifdef CONFIG_SANDBOX struct udevice *dev;