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ipv6: fix ifnullfree.cocci warnings

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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 <[email protected]>
Signed-off-by: Fengguang Wu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Wu Fengguang authored and David S. Miller committed 2015-09-09 17:21:01 -07:00
1 parent 792aec47d5
commit 52fe51f852
1 file changed
+1 -2
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net/ipv6/route.c
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@@ -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);
}