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Commit e2aae1a9 authored by Shuah Khan's avatar Shuah Khan Committed by Greg Kroah-Hartman
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usbip: Fix vhci_urb_enqueue() URB null transfer buffer error path 



commit 2c904963b1dd2acd4bc785b6c72e10a6283c2081 upstream.

Fix vhci_urb_enqueue() to print debug msg and return error instead of
failing with BUG_ON.

Signed-off-by: default avatarShuah Khan <shuah@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d645d693

drivers/usb/usbip/vhci_hcd.c

+4 −2
Original line number Diff line number Diff line
@@ -512,8 +512,10 @@ static int vhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, 
	}

	vdev = &vhci->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);