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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/r8a66597-hcd.c
parentee7d1f3f0c32d8abe9627aa73dc62ee5bf2daf7f (diff)
downloadblackbird-op-linux-b0d9efba3ec53468984aecef8eeaf079089f2e5a.tar.gz
blackbird-op-linux-b0d9efba3ec53468984aecef8eeaf079089f2e5a.zip
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/r8a66597-hcd.c')
-rw-r--r--drivers/usb/host/r8a66597-hcd.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index 49cf998c172a..60248b01ce14 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -783,7 +783,6 @@ static void force_dequeue(struct r8a66597 *r8a66597, u16 pipenum, u16 address)
if (urb) {
urb->status = -ENODEV;
- urb->hcpriv = NULL;
usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597),
urb);
@@ -1134,7 +1133,6 @@ __releases(r8a66597->lock) __acquires(r8a66597->lock)
if (usb_pipeisoc(urb->pipe))
urb->start_frame = r8a66597_get_frame(hcd);
- urb->hcpriv = NULL;
usb_hcd_unlink_urb_from_ep(r8a66597_to_hcd(r8a66597), urb);
spin_unlock(&r8a66597->lock);
@@ -1202,9 +1200,6 @@ static void packet_read(struct r8a66597 *r8a66597, u16 pipenum)
td->zero_packet = 1;
if (rcv_len < bufsize) {
td->short_packet = 1;
- if (urb->transfer_buffer_length != urb->actual_length &&
- urb->transfer_flags & URB_SHORT_NOT_OK)
- status = -EREMOTEIO;
}
if (usb_pipeisoc(urb->pipe)) {
urb->iso_frame_desc[td->iso_cnt].actual_length = size;
@@ -1214,7 +1209,7 @@ static void packet_read(struct r8a66597 *r8a66597, u16 pipenum)
}
/* check transfer finish */
- if (check_transfer_finish(td, urb)) {
+ if (finish || check_transfer_finish(td, urb)) {
pipe_stop(r8a66597, td->pipe);
pipe_irq_disable(r8a66597, pipenum);
finish = 1;
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