diff options
| author | Aaro Koskinen <aaro.koskinen@iki.fi> | 2014-06-29 22:52:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-08 16:39:22 -0700 |
| commit | e5b90898d6360d8904ba439cafa308b073f27a83 (patch) | |
| tree | 9f546b0582c50e77b860bbfd9bd9e474f593b3ce /drivers/staging/octeon-usb/octeon-hcd.c | |
| parent | cdd15d892582a2d11418cce04c13cb806a8a94f0 (diff) | |
staging: octeon-usb: use usb_hcd_link_urb_to_ep()
The driver did not use link_urb_to_ep() / unlink_urb_from_ep(). This
caused odd behaviour in some error recovery situations, all requests
would start to fail after the first failure.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/octeon-usb/octeon-hcd.c')
| -rw-r--r-- | drivers/staging/octeon-usb/octeon-hcd.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c index fca4d3407eb6..ab237c5b61b5 100644 --- a/drivers/staging/octeon-usb/octeon-hcd.c +++ b/drivers/staging/octeon-usb/octeon-hcd.c @@ -2230,6 +2230,7 @@ static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb, urb->status = -EPROTO; break; } + usb_hcd_unlink_urb_from_ep(octeon_to_hcd(priv), urb); spin_unlock(&priv->lock); usb_hcd_giveback_urb(octeon_to_hcd(priv), urb, urb->status); spin_lock(&priv->lock); @@ -3291,10 +3292,17 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd, unsigned long flags; struct cvmx_usb_iso_packet *iso_packet; struct usb_host_endpoint *ep = urb->ep; + int rc; urb->status = 0; spin_lock_irqsave(&priv->lock, flags); + rc = usb_hcd_link_urb_to_ep(hcd, urb); + if (rc) { + spin_unlock_irqrestore(&priv->lock, flags); + return rc; + } + if (!ep->hcpriv) { enum cvmx_usb_transfer transfer_type; enum cvmx_usb_speed speed; @@ -3370,6 +3378,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd, >> 11) & 0x3, split_device, split_port); if (!pipe) { + usb_hcd_unlink_urb_from_ep(hcd, urb); spin_unlock_irqrestore(&priv->lock, flags); dev_dbg(dev, "Failed to create pipe\n"); return -ENOMEM; @@ -3440,6 +3449,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd, break; } if (!transaction) { + usb_hcd_unlink_urb_from_ep(hcd, urb); spin_unlock_irqrestore(&priv->lock, flags); dev_dbg(dev, "Failed to submit\n"); return -ENOMEM; @@ -3455,18 +3465,24 @@ static int octeon_usb_urb_dequeue(struct usb_hcd *hcd, { struct octeon_hcd *priv = hcd_to_octeon(hcd); unsigned long flags; + int rc; if (!urb->dev) return -EINVAL; spin_lock_irqsave(&priv->lock, flags); + rc = usb_hcd_check_unlink_urb(hcd, urb, status); + if (rc) + goto out; + urb->status = status; cvmx_usb_cancel(&priv->usb, urb->ep->hcpriv, urb->hcpriv); +out: spin_unlock_irqrestore(&priv->lock, flags); - return 0; + return rc; } static void octeon_usb_endpoint_disable(struct usb_hcd *hcd, |