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| author | Alan Stern <stern@rowland.harvard.edu> | 2007-08-21 15:39:21 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-10-12 14:55:19 -0700 |
| commit | b0d9efba3ec53468984aecef8eeaf079089f2e5a (patch) | |
| tree | a372d053daddc5ff041949b80bab347317a76938 /drivers/usb/host/sl811-hcd.c | |
| parent | ee7d1f3f0c32d8abe9627aa73dc62ee5bf2daf7f (diff) | |
| download | kernel_samsung_smdk4412-b0d9efba3ec53468984aecef8eeaf079089f2e5a.zip kernel_samsung_smdk4412-b0d9efba3ec53468984aecef8eeaf079089f2e5a.tar.gz kernel_samsung_smdk4412-b0d9efba3ec53468984aecef8eeaf079089f2e5a.tar.bz2 | |
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/sl811-hcd.c')
| -rw-r--r-- | drivers/usb/host/sl811-hcd.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 15a93f9..e90953a 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -438,7 +438,6 @@ static void finish_request( spin_lock(&urb->lock); if (urb->status == -EINPROGRESS) urb->status = status; - urb->hcpriv = NULL; spin_unlock(&urb->lock); usb_hcd_unlink_urb_from_ep(sl811_to_hcd(sl811), urb); @@ -545,17 +544,10 @@ done(struct sl811 *sl811, struct sl811h_ep *ep, u8 bank) sl811_read_buf(sl811, SL811HS_PACKET_BUF(bank == 0), buf, len); usb_dotoggle(udev, ep->epnum, 0); - if (urb->actual_length == urb->transfer_buffer_length) + if (urb->actual_length == urb->transfer_buffer_length + || len < ep->maxpacket) urbstat = 0; - else if (len < ep->maxpacket) { - if (urb->transfer_flags & URB_SHORT_NOT_OK) - urbstat = -EREMOTEIO; - else - urbstat = 0; - } - if (usb_pipecontrol(urb->pipe) - && (urbstat == -EREMOTEIO - || urbstat == 0)) { + if (usb_pipecontrol(urb->pipe) && urbstat == 0) { /* NOTE if the status stage STALLs (why?), * this reports the wrong urb status. |