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staging: ozwpan: fix memcmp() test in oz_set_active_pd()

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"addr" is a pointer so it's either 4 or 8 bytes, but actually we want
to compare 6 bytes (ETH_ALEN).

As network stack already provides helper function
is_zero_ether_addr() we use that instead of memcmp

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Rupesh Gujare <rgujare@ozmodevices.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler 2012-08-19 19:36:37 +03:00 committed by Greg Kroah-Hartman
parent 01f8a27e3c
commit 07732be2ef
1 changed files with 2 additions and 1 deletions
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3
drivers/staging/ozwpan/ozcdev.c
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@ -8,6 +8,7 @@
#include <linux/cdev.h>
#include <linux/uaccess.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/poll.h>
#include <linux/sched.h>
#include "ozconfig.h"
@ -213,7 +214,7 @@ static int oz_set_active_pd(u8 *addr)
if (old_pd)
oz_pd_put(old_pd);
} else {
if (!memcmp(addr, "\0\0\0\0\0\0", sizeof(addr))) {
if (is_zero_ether_addr(addr)) {
spin_lock_bh(&g_cdev.lock);
pd = g_cdev.active_pd;
g_cdev.active_pd = 0;