From 6ee96cc0004c084df22fc1d5d9e2cef2d38d8010 Mon Sep 17 00:00:00 2001 From: Andreas Larsson Date: Thu, 26 Jun 2014 13:07:48 +0200 Subject: [PATCH] usb: gadget: gr_udc: Fix check for invalid number of microframes The value 0x3 (not 0x11) in the field for additional transaction/microframe is reserved and should not be let through. Be clear in the error message about what value caused the error return. Reported-by: David Binderman Signed-off-by: Andreas Larsson Signed-off-by: Felipe Balbi --- drivers/usb/gadget/gr_udc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/gr_udc.c b/drivers/usb/gadget/gr_udc.c index 99a37ed03e27..c7004ee89c90 100644 --- a/drivers/usb/gadget/gr_udc.c +++ b/drivers/usb/gadget/gr_udc.c @@ -1532,8 +1532,9 @@ static int gr_ep_enable(struct usb_ep *_ep, "%s mode: multiple trans./microframe not valid\n", (mode == 2 ? "Bulk" : "Control")); return -EINVAL; - } else if (nt == 0x11) { - dev_err(dev->dev, "Invalid value for trans./microframe\n"); + } else if (nt == 0x3) { + dev_err(dev->dev, + "Invalid value 0x3 for additional trans./microframe\n"); return -EINVAL; } else if ((nt + 1) * max > buffer_size) { dev_err(dev->dev, "Hw buffer size %d < max payload %d * %d\n", -- 2.20.1