diff options
| author | Malcolm Priestley <tvboxspy@gmail.com> | 2014-01-13 16:23:30 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-13 15:46:19 -0800 |
| commit | 9010a286d9857fccfac69e5e8bdf9b74ea1f7c0e (patch) | |
| tree | cabc0dfdf88d681f03952ad30b6b5e462fbe34f0 /drivers/staging | |
| parent | 86a362f16079d435a08d27f92ac2bee4e12856f1 (diff) | |
| download | linux-9010a286d9857fccfac69e5e8bdf9b74ea1f7c0e.tar.bz2 | |
staging: vt6656: sparse fixes: iwctl_siwgenie use memcpy.
extra is in kernel space replace copy_from_user with
memcpy with no need to error check.
We already know that extra is valid by error checking
on wrq->length.
sparse warning
iwctl.c:1567:53: warning: incorrect type in argument 2 (different address spaces)
iwctl.c:1567:53: expected void const [noderef] <asn:1>*from
iwctl.c:1567:53: got char *extra
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/vt6656/iwctl.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c index 058df6516784..bf5687708e18 100644 --- a/drivers/staging/vt6656/iwctl.c +++ b/drivers/staging/vt6656/iwctl.c @@ -1564,10 +1564,8 @@ int iwctl_siwgenie(struct net_device *dev, struct iw_request_info *info, goto out; } memset(pMgmt->abyWPAIE, 0, MAX_WPA_IE_LEN); - if (copy_from_user(pMgmt->abyWPAIE, extra, wrq->length)) { - ret = -EFAULT; - goto out; - } + + memcpy(pMgmt->abyWPAIE, extra, wrq->length); pMgmt->wWPAIELen = wrq->length; } else { memset(pMgmt->abyWPAIE, 0, MAX_WPA_IE_LEN); |