staging: vt6656: sparse fixes: iwctl_giwgenie use memcpy.

extra is in kernel space use memcpy.

sparse warning
iwctl.c:1595:42: warning: incorrect type in argument 1 (different address spaces)
iwctl.c:1595:42:    expected void [noderef] <asn:1>*to
iwctl.c:1595:42:    got char *extra

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 4 insertions, 6 deletions

diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c
index bf5687708e18..3a68dfa23d84 100644
--- a/drivers/staging/vt6656/iwctl.c
+++ b/drivers/staging/vt6656/iwctl.c
@@ -1591,13 +1591,11 @@ int iwctl_giwgenie(struct net_device *dev, struct iw_request_info *info,
         wrq->length = 0;
         if (pMgmt->wWPAIELen > 0) {
                 wrq->length = pMgmt->wWPAIELen;
-                if (pMgmt->wWPAIELen <= space) {
-                        if (copy_to_user(extra, pMgmt->abyWPAIE, pMgmt->wWPAIELen)) {
-                                ret = -EFAULT;
-                        }
-                } else {
+
+                if (pMgmt->wWPAIELen <= space)
+                        memcpy(extra, pMgmt->abyWPAIE, pMgmt->wWPAIELen);
+                else
                         ret = -E2BIG;
-                }
         }
         return ret;
 }