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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2013-02-28 04:43:12 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-03-04 11:13:58 (GMT) |
| commit | fddedd8334d8b4ac6374894d5eed237d18ce1afb (patch) | |
| tree | 632c27fac1fa3f3322b586667c547227cef8e594 /drivers/usb/gadget/f_uac1.c | |
| parent | 57ae575b8a51fd98c9b0066c6c030d5ccce3d77d (diff) | |
| download | linux-fddedd8334d8b4ac6374894d5eed237d18ce1afb.tar.xz | |
usb: gadget: f_uac1: silence an info leak warning
Smatch complains that "len" could be larger than the sizeof(value)
so we could be copying garbage here. I have changed this to match
how things are done in composite_setup().
The call tree looks like:
composite_setup()
--> f_audio_setup()
--> audio_get_intf_req()
composite_setup() expects the return value to be set to
sizeof(value).
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/f_uac1.c')
| -rw-r--r-- | drivers/usb/gadget/f_uac1.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/gadget/f_uac1.c b/drivers/usb/gadget/f_uac1.c index f570e66..fa8ea4e 100644 --- a/drivers/usb/gadget/f_uac1.c +++ b/drivers/usb/gadget/f_uac1.c @@ -418,6 +418,7 @@ static int audio_get_intf_req(struct usb_function *f, req->context = audio; req->complete = f_audio_complete; + len = min_t(size_t, sizeof(value), len); memcpy(req->buf, &value, len); return len; |