xhci: Bigendian fix for xhci_check_bandwidth()

Commit 834cb0fc4712a3b21c6b8c5cb55bd13607191311 "xhci: Fix memory leak
bug when dropping endpoints" added a small endian bug.  This patch fixes
xhci_check_bandwidth() to read add/drop_flags LE.

Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index d9660eb97eb9a4ede02ff49111b46d71d4ac89bb..ecd202101617963805962f5c37732a3112badc7d 100644 (file)
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1849,8 +1849,8 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
 
        /* Free any rings that were dropped, but not changed. */
        for (i = 1; i < 31; ++i) {
-               if ((ctrl_ctx->drop_flags & (1 << (i + 1))) &&
-                               !(ctrl_ctx->add_flags & (1 << (i + 1))))
+               if ((le32_to_cpu(ctrl_ctx->drop_flags) & (1 << (i + 1))) &&
+                   !(le32_to_cpu(ctrl_ctx->add_flags) & (1 << (i + 1))))
                        xhci_free_or_cache_endpoint_ring(xhci, virt_dev, i);
        }
        xhci_zero_in_ctx(xhci, virt_dev);