USB: gadget: dummy_hcd.c: fix nested switch statements

Fix a messed up combination of two nested switch statements in
drivers/usb/gadget/dummy_hcd.c.

According to the USB spec (section 5.8.3) the maximum packet size for bulk
endpoints can be 512 for high-speed devices and 8, 16, 32 or 64 for full-speed
devices.  Low-speed devices must not have bulk endpoints.

Signed-off-by: Ingo van Lil <inguin@gmx.de>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 6 insertions, 8 deletions

diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index e454775c2ff2..433f8c47cce5 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -365,16 +365,14 @@ dummy_enable (struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
                 case USB_SPEED_HIGH:
                         if (max == 512)
                                 break;
-                        /* conserve return statements */
-                default:
-                        switch (max) {
-                        case 8: case 16: case 32: case 64:
+                        goto done;
+                case USB_SPEED_FULL:
+                        if (max == 8 || max == 16 || max == 32 || max == 64)
                                 /* we'll fake any legal size */
                                 break;
-                        default:
-                case USB_SPEED_LOW:
-                                goto done;
-                        }
+                        /* save a return statement */
+                default:
+                        goto done;
                 }
                 break;
         case USB_ENDPOINT_XFER_INT: