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USB: centralize -EREMOTEIO handling

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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>
This commit is contained in:
Alan Stern
2007-08-21 15:39:21 -04:00
committed by Greg Kroah-Hartman
parent ee7d1f3f0c
commit b0d9efba3e
9 changed files with 18 additions and 60 deletions
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5
drivers/usb/host/u132-hcd.c
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@@ -519,7 +519,6 @@ static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp,
struct usb_hcd *hcd = u132_to_hcd(u132);
urb->error_count = 0;
urb->status = status;
urb->hcpriv = NULL;
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
usb_hcd_unlink_urb_from_ep(hcd, urb);
endp->queue_next += 1;
@@ -560,7 +559,6 @@ static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp,
struct usb_hcd *hcd = u132_to_hcd(u132);
urb->error_count = 0;
urb->status = status;
urb->hcpriv = NULL;
spin_lock_irqsave(&endp->queue_lock.slock, irqs);
usb_hcd_unlink_urb_from_ep(hcd, urb);
endp->queue_next += 1;
@@ -2430,7 +2428,6 @@ static int dequeue_from_overflow_chain(struct u132 *u132,
list_del(scan);
endp->queue_size -= 1;
urb->error_count = 0;
urb->hcpriv = NULL;
usb_hcd_giveback_urb(hcd, urb);
return 0;
} else
@@ -2472,7 +2469,6 @@ static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
endp->edset_flush = 1;
u132_endp_queue_work(u132, endp, 0);
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
urb->hcpriv = NULL;
return 0;
} else {
spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
@@ -2517,7 +2513,6 @@ static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
irqs);
kfree(urbq);
} urb->error_count = 0;
urb->hcpriv = NULL;
usb_hcd_giveback_urb(hcd, urb);
return 0;
} else if (list_empty(&endp->urb_more)) {