diff options
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2009-08-27 23:36:14 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-23 15:46:18 +0200 |
| commit | 9191eee7b8a0e18c07c06d6da502706805cab6d2 (patch) | |
| tree | a182a6397331ef8ccbeb1d549f5f3e638d256fff /drivers/usb/host | |
| parent | USB: xhci: Handle babbling endpoints correctly. (diff) | |
| download | linux-9191eee7b8a0e18c07c06d6da502706805cab6d2.tar.xz linux-9191eee7b8a0e18c07c06d6da502706805cab6d2.zip | |
USB: xhci: Don't touch xhci_td after it's freed.
On a successful transfer, urb->td is freed before the URB is ready to be
given back to the driver. Don't touch urb->td after it's freed. This bug
would have only shown up when xHCI debugging was turned on, and the freed
memory was quickly reused for something else.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 2eadf0693862..4142c04b5adf 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1193,7 +1193,7 @@ cleanup: if (urb) { usb_hcd_unlink_urb_from_ep(xhci_to_hcd(xhci), urb); xhci_dbg(xhci, "Giveback URB %p, len = %d, status = %d\n", - urb, td->urb->actual_length, status); + urb, urb->actual_length, status); spin_unlock(&xhci->lock); usb_hcd_giveback_urb(xhci_to_hcd(xhci), urb, status); spin_lock(&xhci->lock); |