diff options
| author | Vincent Pelletier <plr.vincent@gmail.com> | 2017-01-23 17:41:04 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-01-24 12:04:23 +0300 |
| commit | 41dc9ac163e76718d445a8149f8ce635375c8c38 (patch) | |
| tree | d4ed01b18ddc7bb8585008b0b09c994ff8f6b766 /drivers/usb/gadget/function/f_fs.c | |
| parent | f199a80cfece94b67f9e3d2955666e47c6051517 (diff) | |
| download | linux-41dc9ac163e76718d445a8149f8ce635375c8c38.tar.xz | |
usb: gadget: f_fs: Accept up to 30 endpoints.
It is allowed by the USB specification to enabled same-address, opposite-
direction endpoints simultaneously, which means 30 non-zero endpoints
are allowed. So double eps_addrmap length to 30.
The original code only accepted 14 descriptors out of a likely intended 15
(as there are 15 endpoint addresses, ignoring direction), because the first
eps_addrmap entry is unused (it is a placeholder for endpoint zero). So
increase eps_addrmap length by one to 31.
Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/gadget/function/f_fs.c')
| -rw-r--r-- | drivers/usb/gadget/function/f_fs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index e126897a7fae..f5d6bf527aac 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -2101,7 +2101,7 @@ static int __ffs_data_do_entity(enum ffs_entity_type type, case FFS_ENDPOINT: d = (void *)desc; helper->eps_count++; - if (helper->eps_count >= 15) + if (helper->eps_count >= FFS_MAX_EPS_COUNT) return -EINVAL; /* Check if descriptors for any speed were already parsed */ if (!helper->ffs->eps_count && !helper->ffs->interfaces_count) |