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Commit f9da25c7 authored by David Mosberger-Tang's avatar David Mosberger-Tang Committed by Greg Kroah-Hartman
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usb: host: max3421-hcd: Fix potential NULL urb dereference 



Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarDavid Mosberger <davidm@egauge.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 357d596e

drivers/usb/host/max3421-hcd.c

+3 −1
Original line number Diff line number Diff line
@@ -588,12 +588,14 @@ max3421_next_transfer(struct usb_hcd *hcd, int fast_retransmit) 
{

	struct max3421_hcd *max3421_hcd = hcd_to_max3421(hcd);

	struct urb *urb = max3421_hcd->curr_urb;

	struct max3421_ep *max3421_ep = urb->ep->hcpriv;

	struct max3421_ep *max3421_ep;

	int cmd = -EINVAL;



	if (!urb)

		return;	/* nothing to do */



	max3421_ep = urb->ep->hcpriv;



	switch (max3421_ep->pkt_state) {

	case PKT_STATE_SETUP:

		cmd = max3421_ctrl_setup(hcd, urb);