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authorAlan Stern <stern@rowland.harvard.edu>2007-08-21 15:37:50 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 14:55:18 -0700
commitee7d1f3f0c32d8abe9627aa73dc62ee5bf2daf7f (patch)
treefdf3fe49bf6d6478efde1c30ff5f7aa0779080f5 /drivers/usb/host
parentdfd1e53777afe1050e3a0a3f0dd063a64242b818 (diff)
downloadop-kernel-dev-ee7d1f3f0c32d8abe9627aa73dc62ee5bf2daf7f.zip
op-kernel-dev-ee7d1f3f0c32d8abe9627aa73dc62ee5bf2daf7f.tar.gz
USB: remove Iso status value in uhci-hcd
This patch (968) changes the way uhci-hcd reports status for Isochronous URBs. Until now urb->status has been set to the last detected error code. But other HCDs don't do this; they leave the status set to 0 and report errors only in the individual iso packet descriptors. So this patch removes the extra computation and makes uhci-hcd behave like the others. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host')
-rw-r--r--drivers/usb/host/uhci-hcd.h1
-rw-r--r--drivers/usb/host/uhci-q.c11
2 files changed, 3 insertions, 9 deletions
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 1b3d234..e46d2b0 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -146,7 +146,6 @@ struct uhci_qh {
short phase; /* Between 0 and period-1 */
short load; /* Periodic time requirement, in us */
unsigned int iso_frame; /* Frame # for iso_packet_desc */
- int iso_status; /* Status for Isochronous URBs */
int state; /* QH_STATE_xxx; see above */
int type; /* Queue type (control, bulk, etc) */
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index bff200c..793a046 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -1324,7 +1324,6 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb,
if (list_empty(&qh->queue)) {
qh->iso_packet_desc = &urb->iso_frame_desc[0];
qh->iso_frame = urb->start_frame;
- qh->iso_status = 0;
}
qh->skel = SKEL_ISO;
@@ -1361,18 +1360,15 @@ static int uhci_result_isochronous(struct uhci_hcd *uhci, struct urb *urb)
qh->iso_packet_desc->actual_length = actlength;
qh->iso_packet_desc->status = status;
}
-
- if (status) {
+ if (status)
urb->error_count++;
- qh->iso_status = status;
- }
uhci_remove_td_from_urbp(td);
uhci_free_td(uhci, td);
qh->iso_frame += qh->period;
++qh->iso_packet_desc;
}
- return qh->iso_status;
+ return 0;
}
static int uhci_urb_enqueue(struct usb_hcd *hcd,
@@ -1517,7 +1513,6 @@ __acquires(uhci->lock)
qh->iso_packet_desc = &nurb->iso_frame_desc[0];
qh->iso_frame = nurb->start_frame;
- qh->iso_status = 0;
}
/* Take the URB off the QH's queue. If the queue is now empty,
@@ -1586,7 +1581,7 @@ static void uhci_scan_qh(struct uhci_hcd *uhci, struct uhci_qh *qh)
}
uhci_giveback_urb(uhci, qh, urb);
- if (status < 0 && qh->type != USB_ENDPOINT_XFER_ISOC)
+ if (status < 0)
break;
}
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