diff options
Diffstat (limited to 'drivers/usb/host/ohci-sa1111.c')
| -rw-r--r-- | drivers/usb/host/ohci-sa1111.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c index 7d2aa62..f61f4f9 100644 --- a/drivers/usb/host/ohci-sa1111.c +++ b/drivers/usb/host/ohci-sa1111.c @@ -27,9 +27,10 @@ extern int usb_disabled(void); /*-------------------------------------------------------------------------*/ -static void sa1111_start_hc(struct sa1111_dev *dev) +static int sa1111_start_hc(struct sa1111_dev *dev) { unsigned int usb_rst = 0; + int ret; printk(KERN_DEBUG "%s: starting SA-1111 OHCI USB Controller\n", __FILE__); @@ -57,9 +58,13 @@ static void sa1111_start_hc(struct sa1111_dev *dev) * Now, carefully enable the USB clock, and take * the USB host controller out of reset. */ - sa1111_enable_device(dev); - udelay(11); - sa1111_writel(usb_rst, dev->mapbase + SA1111_USB_RESET); + ret = sa1111_enable_device(dev); + if (ret == 0) { + udelay(11); + sa1111_writel(usb_rst, dev->mapbase + SA1111_USB_RESET); + } + + return ret; } static void sa1111_stop_hc(struct sa1111_dev *dev) @@ -140,7 +145,10 @@ int usb_hcd_sa1111_probe (const struct hc_driver *driver, } hcd->regs = dev->mapbase; - sa1111_start_hc(dev); + ret = sa1111_start_hc(dev); + if (ret) + goto err2; + ohci_hcd_init(hcd_to_ohci(hcd)); retval = usb_add_hcd(hcd, dev->irq[1], 0); @@ -148,6 +156,7 @@ int usb_hcd_sa1111_probe (const struct hc_driver *driver, return retval; sa1111_stop_hc(dev); + err2: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err1: usb_put_hcd(hcd); |