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authorAlan Stern <stern@rowland.harvard.edu>2007-08-21 15:39:21 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 14:55:19 -0700
commitb0d9efba3ec53468984aecef8eeaf079089f2e5a (patch)
treea372d053daddc5ff041949b80bab347317a76938 /drivers/usb/host/ehci-q.c
parentee7d1f3f0c32d8abe9627aa73dc62ee5bf2daf7f (diff)
USB: centralize -EREMOTEIO handling
This patch (as969) continues the ongoing changes to the way HCDs report URB statuses. The programming interface has been simplified by making usbcore responsible for clearing urb->hcpriv and for setting -EREMOTEIO status when an URB with the URB_SHORT_NOT_OK flag ends up as a short transfer. By moving the work out of the HCDs, this removes a fair amount of repeated code. 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>
Diffstat (limited to 'drivers/usb/host/ehci-q.c')
-rw-r--r--drivers/usb/host/ehci-q.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 1da2de4d34ed..e80b5c417d74 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -232,7 +232,6 @@ __acquires(ehci->lock)
}
spin_lock (&urb->lock);
- urb->hcpriv = NULL;
switch (urb->status) {
case -EINPROGRESS: /* success */
urb->status = 0;
@@ -395,8 +394,10 @@ halt:
/* remove it from the queue */
spin_lock (&urb->lock);
qtd_copy_status (ehci, urb, qtd->length, token);
- do_status = (urb->status == -EREMOTEIO)
- && usb_pipecontrol (urb->pipe);
+ if (unlikely(urb->status == -EREMOTEIO)) {
+ do_status = usb_pipecontrol(urb->pipe);
+ urb->status = 0;
+ }
spin_unlock (&urb->lock);
if (stopped && qtd->qtd_list.prev != &qh->qtd_list) {