[PATCH bpf v2 2/9] bpf: Remove unnecessary kfree(im_node) in lpm_trie_update_elem

[Hou Tao <houtao@xxxxxxxxxxxxxxx>]

From: Hou Tao <houtao1@xxxxxxxxxx>

There is no need to call kfree(im_node) when updating element fails,
because im_node must be NULL. Remove the unnecessary kfree() for
im_node.

Reviewed-by: Toke Høiland-Jørgensen <toke@xxxxxxxxxx>
Signed-off-by: Hou Tao <houtao1@xxxxxxxxxx>
---
 kernel/bpf/lpm_trie.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/bpf/lpm_trie.c b/kernel/bpf/lpm_trie.c
index 73fd593d3745..c6f036e3044b 100644
--- a/kernel/bpf/lpm_trie.c
+++ b/kernel/bpf/lpm_trie.c
@@ -431,9 +431,7 @@ static long trie_update_elem(struct bpf_map *map,
 	if (ret) {
 		if (new_node)
 			trie->n_entries--;
-
 		kfree(new_node);
-		kfree(im_node);
 	}
 
 	spin_unlock_irqrestore(&trie->lock, irq_flags);
-- 
2.29.2