From 52fe51f8523751da0e79c85350c47eb3bb94da5b Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Thu, 10 Sep 2015 06:57:12 +0800 Subject: [PATCH] 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 Signed-off-by: Fengguang Wu Signed-off-by: David S. Miller --- net/ipv6/route.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 34539d3b843f..53617d715188 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -2942,8 +2942,7 @@ cleanup: 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); } -- 2.20.1