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power: reset: linkstation-poweroff: fix use-after-free in the linkstation_poweroff_init()

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commit 8eec545cde upstream.

Move of_node_put(dn) after the of_match_node() call, which still needs
the node pointer. The node reference is correctly released after use.

Fixes: e2f471efe1 ("power: reset: linkstation-poweroff: prepare for new devices")
Cc: stable@vger.kernel.org
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Link: https://patch.msgid.link/20260407073025.271865-1-vulab@iscas.ac.cn
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wentao Liang
2026-07-04 13:44:20 +02:00
committed by Greg Kroah-Hartman
parent 720949ed66
commit 2205275be9
1 changed files with 1 additions and 1 deletions
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drivers/power/reset/linkstation-poweroff.c
+1 -1
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@@ -163,10 +163,10 @@ static int __init linkstation_poweroff_init(void)
dn = of_find_matching_node(NULL, ls_poweroff_of_match);
if (!dn)
return -ENODEV;
of_node_put(dn);
match = of_match_node(ls_poweroff_of_match, dn);
cfg = match->data;
of_node_put(dn);
dn = of_find_node_by_name(NULL, cfg->mdio_node_name);
if (!dn)