diff options
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 2564d8d12f2..b8b90e78403 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2271,17 +2271,16 @@ static int hub_port_reset(struct usb_hub *hub, int port1, { int i, status; - if (!warm) { - /* Block EHCI CF initialization during the port reset. - * Some companion controllers don't like it when they mix. - */ - down_read(&ehci_cf_port_reset_rwsem); - } else { - if (!hub_is_superspeed(hub->hdev)) { + if (!hub_is_superspeed(hub->hdev)) { + if (warm) { dev_err(hub->intfdev, "only USB3 hub support " "warm reset\n"); return -EINVAL; } + /* Block EHCI CF initialization during the port reset. + * Some companion controllers don't like it when they mix. + */ + down_read(&ehci_cf_port_reset_rwsem); } /* Reset the port */ @@ -2319,7 +2318,7 @@ static int hub_port_reset(struct usb_hub *hub, int port1, port1); done: - if (!warm) + if (!hub_is_superspeed(hub->hdev)) up_read(&ehci_cf_port_reset_rwsem); return status; |