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ipv6: fix ifnullfree.cocci warnings 

net/ipv6/route.c:2946:3-8: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.

 NULL check before some freeing functions is not needed.

 Based on checkpatch warning
 "kfree(NULL) is safe this check is probably not required"
 and kfreeaddr.cocci by Julia Lawall.

Generated by: scripts/coccinelle/free/ifnullfree.cocci

CC: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wu Fengguang 2015-09-10 06:57:12 +08:00 committed by David S. Miller
parent 792aec47d5
commit 52fe51f852
1 changed files with 1 additions and 2 deletions
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3
net/ipv6/route.c
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@ -2942,8 +2942,7 @@ static int ip6_route_multipath_add(struct fib6_config *cfg)
list_for_each_entry_safe(nh, nh_safe, &rt6_nh_list, next) {
if (nh->rt6_info)
dst_free(&nh->rt6_info->dst);
if (nh->mxc.mx)
kfree(nh->mxc.mx);
kfree(nh->mxc.mx);
list_del(&nh->next);
kfree(nh);
}