From: Shuah Khan shuah@kernel.org
commit 2c904963b1dd2acd4bc785b6c72e10a6283c2081 upstream.
Fix vhci_urb_enqueue() to print debug msg and return error instead of failing with BUG_ON.
Signed-off-by: Shuah Khan shuah@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/usbip/vhci_hcd.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/usb/usbip/vhci_hcd.c +++ b/drivers/usb/usbip/vhci_hcd.c @@ -702,8 +702,10 @@ static int vhci_urb_enqueue(struct usb_h } vdev = &vhci_hcd->vdev[portnum-1];
- /* patch to usb_sg_init() is in 2.5.60 */ - BUG_ON(!urb->transfer_buffer && urb->transfer_buffer_length); + if (!urb->transfer_buffer && urb->transfer_buffer_length) { + dev_dbg(dev, "Null URB transfer buffer\n"); + return -EINVAL; + }
spin_lock_irqsave(&vhci->lock, flags);