Commit 75eaa498 authored by Nikhil Badola's avatar Nikhil Badola Committed by Felipe Balbi
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usb: gadget: Correct NULL pointer checking in fsl gadget 



Correct NULL pointer checking for endpoint descriptor
before it gets dereferenced

Signed-off-by: default avatarNikhil Badola <nikhil.badola@freescale.com>
Signed-off-by: default avatarRan Wang <ran.wang_1@nxp.com>
Reviewed-by: default avatarPeter Chen <peter.chen@nxp.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent eb23c8b4

drivers/usb/gadget/udc/fsl_udc_core.c

+3 −2
Original line number Diff line number Diff line
@@ -1052,10 +1052,11 @@ static int fsl_ep_fifo_status(struct usb_ep *_ep) 
	u32 bitmask;

	struct ep_queue_head *qh;



	ep = container_of(_ep, struct fsl_ep, ep);

	if (!_ep || (!ep->ep.desc && ep_index(ep) != 0))

	if (!_ep || _ep->desc || !(_ep->desc->bEndpointAddress&0xF))

		return -ENODEV;



	ep = container_of(_ep, struct fsl_ep, ep);



	udc = (struct fsl_udc *)ep->udc;



	if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN)

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