target/linux/layerscape/patches-5.4/820-usb-0019-MLK-9829-usb-core-print-suggested-message-if-failed-.patch

   1 From 9b297faabe3fc35741746aca39128fbb12e28113 Mon Sep 17 00:00:00 2001
   2 From: Li Jun <b47624@freescale.com>
   3 Date: Wed, 12 Nov 2014 15:16:33 +0800
   4 Subject: [PATCH] MLK-9829 usb: core: print suggested message if failed to get
   5  device descriptor
   6 MIME-Version: 1.0
   7 Content-Type: text/plain; charset=UTF-8
   8 Content-Transfer-Encoding: 8bit
   9
  10 This is required for USB OTG and EH compliance test 6.7.22(A-UUT “Device No
  11 Response” for connection timeout). When the connected usb device(PET) does
  12 not response to transactions, host will fail to get device descriptor.
  13
  14 Signed-off-by: Li Jun <jun.li@freescale.com>
  15 (cherry picked from commit 86d0bd661ecbbdf97dd9a8ddbaf0d3811de7f39e)
  16 (cherry picked from commit 858af83637291d2ececfc7b2b4b17e3a371b53f3)
  17 ---
  18  drivers/usb/core/hub.c | 3 ++-
  19  1 file changed, 2 insertions(+), 1 deletion(-)
  20
  21 --- a/drivers/usb/core/hub.c
  22 +++ b/drivers/usb/core/hub.c
  23 @@ -4716,7 +4716,8 @@ hub_port_init(struct usb_hub *hub, struc
  24                         }
  25                         if (r) {
  26                                 if (r != -ENODEV)
  27 -                                       dev_err(&udev->dev, "device descriptor read/64, error %d\n",
  28 +                                       dev_err(&udev->dev,
  29 +                                               "device no response, device descriptor read/64, error %d\n",
  30                                                         r);
  31                                 retval = -EMSGSIZE;
  32                                 continue;