USB: add urb->unlinked field

This patch (as970) adds a new urb->unlinked field, which is used to
store the status of unlinked URBs since we can't use urb->status for
that purpose any more.  To help simplify the HCDs, usbcore will check
urb->unlinked before calling the completion handler; if the value is
set it will automatically override the status reported by the HCD.

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>
This commit is contained in:
Alan Stern
2007-08-21 15:40:36 -04:00
committed by Greg Kroah-Hartman
parent b0d9efba3e
commit eb23105462
11 changed files with 108 additions and 125 deletions

View File

@@ -455,11 +455,10 @@ static void postproc_atl_queue(struct isp116x *isp116x)
done:
if (status != -EINPROGRESS) {
spin_lock(&urb->lock);
if (urb->status == -EINPROGRESS)
urb->status = status;
urb->status = status;
spin_unlock(&urb->lock);
}
if (urb->status != -EINPROGRESS)
if (urb->status != -EINPROGRESS || urb->unlinked)
finish_request(isp116x, ep, urb);
}
}