USB: Eliminate urb->status usage!

This patch (as979) removes the last vestiges of urb->status from the
host controller drivers and the root-hub emulator.  Now the field
doesn't get set until just before the URB's completion routine is
called.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
CC: Olav Kongas <ok@artecdesign.ee>
CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
CC: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 15 deletions

diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index e46d2b0203cb..340d6ed3e6e9 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -456,21 +456,6 @@ struct urb_priv {
 };
 
 
-/*
- * Locking in uhci.c
- *
- * Almost everything relating to the hardware schedule and processing
- * of URBs is protected by uhci->lock.  urb->status is protected by
- * urb->lock; that's the one exception.
- *
- * To prevent deadlocks, never lock uhci->lock while holding urb->lock.
- * The safe order of locking is:
- *
- * #1 uhci->lock
- * #2 urb->lock
- */
-
-
 /* Some special IDs */
 
 #define PCI_VENDOR_ID_GENESYS           0x17a0