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Commit daaecc65 authored by Roger Quadros's avatar Roger Quadros Committed by Felipe Balbi
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usb: dwc3: prevent setting PRTCAP to OTG from debugfs 



We don't support PRTCAP == OTG yet, so prevent user from
setting it via debugfs.

Fixes: 41ce1456 ("usb: dwc3: core: make dwc3_set_mode() work properly")
Cc: <stable@vger.kernel.org> # v4.12+
Signed-off-by: default avatarRoger Quadros <rogerq@ti.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 4cff75c7

drivers/usb/dwc3/core.c

+3 −0
Original line number Diff line number Diff line
@@ -119,6 +119,9 @@ static void __dwc3_set_mode(struct work_struct *work) 
	if (dwc->dr_mode != USB_DR_MODE_OTG)

		return;



	if (dwc->desired_dr_role == DWC3_GCTL_PRTCAP_OTG)

		return;



	switch (dwc->current_dr_role) {

	case DWC3_GCTL_PRTCAP_HOST:

		dwc3_host_exit(dwc);