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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>
This commit is contained in:
Benjamin Herrenschmidt 2018-01-12 17:50:02 +11:00 committed by Greg Kroah-Hartman
parent 0cb5818a3b
commit 11fb379987
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/udc/core.c
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@ -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) {