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usb: gadget: f_fs: Fix wrong check on reserved1 of OS_DESC_EXT_COMPAT 

Current __ffs_data_do_os_desc() of f_fs.c will check reserved1 field
of OS_DESC_EXT_COMPAT and return -EINVAL if it's 1.
But MS OS 1.0 Descriptors
http://msdn.microsoft.com/en-us/library/windows/hardware/gg463179.aspx
defines that field to be 1.

Signed-off-by: Jim Lin <jilin@nvidia.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Jim Lin 2016-05-20 18:13:19 +08:00 committed by Felipe Balbi
parent cc50dc28da
commit 53642399aa
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/function/f_fs.c
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@ -2051,7 +2051,7 @@ static int __ffs_data_do_os_desc(enum ffs_os_desc_type type,
if (len < sizeof(*d) ||
d->bFirstInterfaceNumber >= ffs->interfaces_count ||
d->Reserved1)
!d->Reserved1)
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(d->Reserved2); ++i)
if (d->Reserved2[i])