openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

staging: dwc2: add calls to usb_hcd_link_urb_to_ep() and friends 

The driver was lacking calls to usb_hcd_link_urb_to_ep(),
usb_hcd_unlink_urb_from_ep(), and usb_hcd_check_unlink_urb(). Add
those now.

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Paul Zimmerman 2013-07-13 14:53:49 -07:00 committed by Greg Kroah-Hartman
parent 0d012b9866
commit c9e1c907ff
1 changed files with 37 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
drivers/staging/dwc2/hcd.c
View File

@ -2153,6 +2153,7 @@ void dwc2_host_complete(struct dwc2_hsotg *hsotg, struct dwc2_qtd *qtd,
urb);
}
usb_hcd_unlink_urb_from_ep(dwc2_hsotg_to_hcd(hsotg), urb);
urb->hcpriv = NULL;
kfree(qtd->urb);
qtd->urb = NULL;
@ -2343,8 +2344,8 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
struct usb_host_endpoint *ep = urb->ep;
struct dwc2_hcd_urb *dwc2_urb;
int i;
int retval;
int alloc_bandwidth = 0;
int retval = 0;
u8 ep_type = 0;
u32 tflags = 0;
void *buf;
@ -2426,12 +2427,17 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
urb->iso_frame_desc[i].length);
urb->hcpriv = dwc2_urb;
retval = dwc2_hcd_urb_enqueue(hsotg, dwc2_urb, &ep->hcpriv,
mem_flags);
if (retval) {
urb->hcpriv = NULL;
kfree(dwc2_urb);
} else {
spin_lock_irqsave(&hsotg->lock, flags);
retval = usb_hcd_link_urb_to_ep(hcd, urb);
spin_unlock_irqrestore(&hsotg->lock, flags);
if (retval)
goto fail1;
retval = dwc2_hcd_urb_enqueue(hsotg, dwc2_urb, &ep->hcpriv, mem_flags);
if (retval)
goto fail2;
if (alloc_bandwidth) {
spin_lock_irqsave(&hsotg->lock, flags);
dwc2_allocate_bus_bandwidth(hcd,
@ -2439,7 +2445,17 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
urb);
spin_unlock_irqrestore(&hsotg->lock, flags);
}
}
return 0;
fail2:
spin_lock_irqsave(&hsotg->lock, flags);
dwc2_urb->priv = NULL;
usb_hcd_unlink_urb_from_ep(hcd, urb);
spin_unlock_irqrestore(&hsotg->lock, flags);
fail1:
urb->hcpriv = NULL;
kfree(dwc2_urb);
return retval;
}
@ -2451,7 +2467,7 @@ static int _dwc2_hcd_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
int status)
{
struct dwc2_hsotg *hsotg = dwc2_hcd_to_hsotg(hcd);
int rc = 0;
int rc;
unsigned long flags;
dev_dbg(hsotg->dev, "DWC OTG HCD URB Dequeue\n");
@ -2459,6 +2475,10 @@ static int _dwc2_hcd_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
spin_lock_irqsave(&hsotg->lock, flags);
rc = usb_hcd_check_unlink_urb(hcd, urb, status);
if (rc)
goto out;
if (!urb->hcpriv) {
dev_dbg(hsotg->dev, "## urb->hcpriv is NULL ##\n");
goto out;
@ -2466,6 +2486,8 @@ static int _dwc2_hcd_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
rc = dwc2_hcd_urb_dequeue(hsotg, urb->hcpriv);
usb_hcd_unlink_urb_from_ep(hcd, urb);
kfree(urb->hcpriv);
urb->hcpriv = NULL;