releases/4.9.68/usb-gadget-f_fs-fix-extcompat-descriptor-validation.patch

   1 From foo@baz Wed Dec  6 17:39:55 CET 2017
   2 From: Vincent Pelletier <plr.vincent@gmail.com>
   3 Date: Thu, 15 Dec 2016 12:47:42 +0000
   4 Subject: usb: gadget: f_fs: Fix ExtCompat descriptor validation
   5
   6 From: Vincent Pelletier <plr.vincent@gmail.com>
   7
   8
   9 [ Upstream commit 354bc45bf329494ef6051f3229ef50b9e2a7ea2a ]
  10
  11 Reserved1 is documented as expected to be set to 0, but this test fails
  12 when it it set to 0. Reverse the condition.
  13
  14 Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
  15 Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
  16 Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
  17 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  18 ---
  19  drivers/usb/gadget/function/f_fs.c |    2 +-
  20  1 file changed, 1 insertion(+), 1 deletion(-)
  21
  22 --- a/drivers/usb/gadget/function/f_fs.c
  23 +++ b/drivers/usb/gadget/function/f_fs.c
  24 @@ -2263,7 +2263,7 @@ static int __ffs_data_do_os_desc(enum ff
  25
  26                 if (len < sizeof(*d) ||
  27                     d->bFirstInterfaceNumber >= ffs->interfaces_count ||
  28 -                   !d->Reserved1)
  29 +                   d->Reserved1)
  30                         return -EINVAL;
  31                 for (i = 0; i < ARRAY_SIZE(d->Reserved2); ++i)
  32                         if (d->Reserved2[i])