usb: Fix compiler warning with gcc4.4

ehci-hcd.c: In function 'ehci_submit_root':
ehci-hcd.c:719: warning: value computed is not used
ehci-hcd.c:748: warning: value computed is not used

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Remy Bohmer <linux@bohmer.net>

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index bbd547b3e357fb8011702d34d9a26c9b546e5a27..423ea5d814f72db68a097c2f377ca8bf234fb0c4 100644 (file)
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -716,7 +716,7 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer,
                        goto unknown;
                }
                /* unblock posted writes */
-               ehci_readl(&hcor->or_usbcmd);
+               (void) ehci_readl(&hcor->or_usbcmd);
                break;
        case USB_REQ_CLEAR_FEATURE | ((USB_DIR_OUT | USB_RT_PORT) << 8):
                reg = ehci_readl(status_reg);
@@ -745,7 +745,7 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer,
                }
                ehci_writel(status_reg, reg);
                /* unblock posted write */
-               ehci_readl(&hcor->or_usbcmd);
+               (void) ehci_readl(&hcor->or_usbcmd);
                break;
        default:
                debug("Unknown request\n");