diff options
| author | Rob Herring <robh@kernel.org> | 2014-04-18 08:54:28 -0500 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2014-04-30 10:30:57 +0200 |
| commit | 52d45012ff66dee716b8dfcb7d67d3ab54a3208a (patch) | |
| tree | 4c7a731a6e3eaf6321c0cae7846217fac04b54ea /drivers/usb/gadget | |
| parent | fd2a89b20ba66d76929f672b03f392733fb1b2a6 (diff) | |
usb: handle NULL table in usb_gadget_get_string
Allow a NULL table to be passed to usb_gadget_get_string for cases
when a string table may not be populated.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Tom Rini <trini@ti.com>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/usbstring.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/gadget/usbstring.c b/drivers/usb/gadget/usbstring.c index de5fa3f648..8c3ff64fe3 100644 --- a/drivers/usb/gadget/usbstring.c +++ b/drivers/usb/gadget/usbstring.c @@ -108,6 +108,9 @@ usb_gadget_get_string(struct usb_gadget_strings *table, int id, u8 *buf) struct usb_string *s; int len; + if (!table) + return -EINVAL; + /* descriptor 0 has the language id */ if (id == 0) { buf[0] = 4; |