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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2018-01-12 17:50:02 +1100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-02-03 17:39:21 +0100
commit2ba5966eddefdf04306bd1da36811c8b83a9664d (patch)
tree1d56912b5b29d01c3bdd29ef5e37ae8b64df181b
parente0096f93aa42d47f0277e28c3b26eaa5e1ebadd5 (diff)
usb/gadget: Fix "high bandwidth" check in usb_gadget_ep_match_desc()
commit 11fb37998759c48e4e4c200c974593cbeab25d3e 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>
-rw-r--r--drivers/usb/gadget/udc/core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 284bd1a7b570..794bb4958383 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -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) {