diff options
| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-25 12:41:02 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-25 12:41:02 -0800 |
| commit | 67635d397a643514fdfa859f611b86bd3ad8958d (patch) | |
| tree | b5df6d79b35cde39c00f0cc1432f128f473d4d6e /drivers/usb/host/uhci-hcd.c | |
| parent | usb: enable usb port device's async suspend. (diff) | |
| parent | Linux 3.8-rc5 (diff) | |
| download | linux-dev-67635d397a643514fdfa859f611b86bd3ad8958d.tar.xz linux-dev-67635d397a643514fdfa859f611b86bd3ad8958d.zip | |
Merge 3.8-rc5 into usb-next
This fixes up a conflict with drivers/usb/serial/io_ti.c that came up in
linux-next.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/uhci-hcd.c')
| -rw-r--r-- | drivers/usb/host/uhci-hcd.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index 01628e39cc8b..4a86b63745b8 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -447,6 +447,10 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd) return IRQ_NONE; uhci_writew(uhci, status, USBSTS); /* Clear it */ + spin_lock(&uhci->lock); + if (unlikely(!uhci->is_initialized)) /* not yet configured */ + goto done; + if (status & ~(USBSTS_USBINT | USBSTS_ERROR | USBSTS_RD)) { if (status & USBSTS_HSE) dev_err(uhci_dev(uhci), @@ -455,7 +459,6 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd) dev_err(uhci_dev(uhci), "host controller process error, something bad happened!\n"); if (status & USBSTS_HCH) { - spin_lock(&uhci->lock); if (uhci->rh_state >= UHCI_RH_RUNNING) { dev_err(uhci_dev(uhci), "host controller halted, very bad!\n"); @@ -472,15 +475,15 @@ static irqreturn_t uhci_irq(struct usb_hcd *hcd) * pending unlinks */ mod_timer(&hcd->rh_timer, jiffies); } - spin_unlock(&uhci->lock); } } - if (status & USBSTS_RD) + if (status & USBSTS_RD) { + spin_unlock(&uhci->lock); usb_hcd_poll_rh_status(hcd); - else { - spin_lock(&uhci->lock); + } else { uhci_scan_schedule(uhci); + done: spin_unlock(&uhci->lock); } @@ -661,9 +664,9 @@ static int uhci_start(struct usb_hcd *hcd) */ mb(); + spin_lock_irq(&uhci->lock); configure_hc(uhci); uhci->is_initialized = 1; - spin_lock_irq(&uhci->lock); start_rh(uhci); spin_unlock_irq(&uhci->lock); return 0; |