diff options
| author |   Ingo Molnar <mingo@kernel.org> | 2018-08-02 09:59:20 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-08-02 09:59:20 +0200 |
| commit | 16e0e6a83b778284ae9b3a57003eeea8d8090b55 (patch) | |
| tree | 42bf9a711c59549294b2f2125978f5a7095e16c2 /drivers/usb/core/hub.c | |
| parent | Merge tag 'perf-core-for-mingo-4.19-20180725' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (diff) | |
| parent | Merge tag 'perf-urgent-for-mingo-4.18-20180730' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent (diff) | |
| download | linux-dev-16e0e6a83b778284ae9b3a57003eeea8d8090b55.tar.xz linux-dev-16e0e6a83b778284ae9b3a57003eeea8d8090b55.zip | |
Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index fcae521df29b..1fb266809966 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1142,10 +1142,14 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) if (!udev || udev->state == USB_STATE_NOTATTACHED) { /* Tell hub_wq to disconnect the device or - * check for a new connection + * check for a new connection or over current condition. + * Based on USB2.0 Spec Section 11.12.5, + * C_PORT_OVER_CURRENT could be set while + * PORT_OVER_CURRENT is not. So check for any of them. */ if (udev || (portstatus & USB_PORT_STAT_CONNECTION) || - (portstatus & USB_PORT_STAT_OVERCURRENT)) + (portstatus & USB_PORT_STAT_OVERCURRENT) || + (portchange & USB_PORT_STAT_C_OVERCURRENT)) set_bit(port1, hub->change_bits); } else if (portstatus & USB_PORT_STAT_ENABLE) { |