Commit 11fb3799 authored Jan 12, 2018 by Benjamin Herrenschmidt Committed by Greg Kroah-Hartman Jan 22, 2018

usb/gadget: Fix "high bandwidth" check in usb_gadget_ep_match_desc()



The current code tries to test for bits that are masked out by
usb_endpoint_maxp(). Instead, use the proper accessor to access
the new high bandwidth bits.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 0cb5818a

drivers/usb/gadget/udc/core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -912,7 +912,7 @@ int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
		return 0;

		/* "high bandwidth" works only at high speed */
		if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
		if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp_mult(desc) > 1)
		return 0;

		switch (type) {

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