diff options
| author | Tao Ren <rentao.bupt@gmail.com> | 2020-03-15 12:16:28 -0700 |
|---|---|---|
| committer | Felipe Balbi <balbi@kernel.org> | 2020-05-05 10:58:51 +0300 |
| commit | 17309a6a43561bd7f4d4b51d7987225eb2b13d05 (patch) | |
| tree | ac43215c4142fe3e783955d1af712f340fddf4c0 /drivers/usb/gadget/configfs.c | |
| parent | 5cc0710f23689455d40d590ebbcbcd21b0d84c77 (diff) | |
usb: gadget: add "usb_validate_langid" function
The USB LANGID validation code in "check_user_usb_string" function is
moved to "usb_validate_langid" function which can be used by other usb
gadget drivers.
Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Diffstat (limited to 'drivers/usb/gadget/configfs.c')
| -rw-r--r-- | drivers/usb/gadget/configfs.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 32b637e3e1fa..822ef0470c5f 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -13,8 +13,6 @@ int check_user_usb_string(const char *name, struct usb_gadget_strings *stringtab_dev) { - unsigned primary_lang; - unsigned sub_lang; u16 num; int ret; @@ -22,17 +20,7 @@ int check_user_usb_string(const char *name, if (ret) return ret; - primary_lang = num & 0x3ff; - sub_lang = num >> 10; - - /* simple sanity check for valid langid */ - switch (primary_lang) { - case 0: - case 0x62 ... 0xfe: - case 0x100 ... 0x3ff: - return -EINVAL; - } - if (!sub_lang) + if (!usb_validate_langid(num)) return -EINVAL; stringtab_dev->language = num; |