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

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commit 11fb379987 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Benjamin Herrenschmidt
2018-02-03 17:39:21 +01:00
committed by Greg Kroah-Hartman
parent e0096f93aa
commit 2ba5966edd
1 changed files with 1 additions and 1 deletions
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drivers/usb/gadget/udc/core.c
+1 -1
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@@ -923,7 +923,7 @@ 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) {