Commit bc1e3a2d authored by Nikhil Badola's avatar Nikhil Badola Committed by Felipe Balbi
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usb: fsl: Check memory resource before releasing it 



Check memory resource existence before releasing it to avoid NULL
pointer dereference

Signed-off-by: default avatarNikhil Badola <nikhil.badola@freescale.com>
Reviewed-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 a51bab59

drivers/usb/gadget/udc/fsl_udc_core.c

+1 −1
Original line number Diff line number Diff line
@@ -2576,7 +2576,7 @@ static int fsl_udc_remove(struct platform_device *pdev) 
	dma_pool_destroy(udc_controller->td_pool);

	free_irq(udc_controller->irq, udc_controller);

	iounmap(dr_regs);

	if (pdata->operating_mode == FSL_USB2_DR_DEVICE)

	if (res && (pdata->operating_mode == FSL_USB2_DR_DEVICE))

		release_mem_region(res->start, resource_size(res));



	/* free udc --wait for the release() finished */

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