diff options
Diffstat (limited to 'drivers/usb/host/ehci-brcm.c')
| -rw-r--r-- | drivers/usb/host/ehci-brcm.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-brcm.c b/drivers/usb/host/ehci-brcm.c index d3626bfa966b..6a0f64c9e5e8 100644 --- a/drivers/usb/host/ehci-brcm.c +++ b/drivers/usb/host/ehci-brcm.c @@ -62,8 +62,12 @@ static int ehci_brcm_hub_control( u32 __iomem *status_reg; unsigned long flags; int retval, irq_disabled = 0; + u32 temp; - status_reg = &ehci->regs->port_status[(wIndex & 0xff) - 1]; + temp = (wIndex & 0xff) - 1; + if (temp >= HCS_N_PORTS_MAX) /* Avoid index-out-of-bounds warning */ + temp = 0; + status_reg = &ehci->regs->port_status[temp]; /* * RESUME is cleared when GetPortStatus() is called 20ms after start |