diff options
| author | Wen Yang <wen.yang99@zte.com.cn> | 2019-07-10 15:25:07 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-29 08:29:44 +0200 |
| commit | 86827ec32e56268353fb4bb8f4ef1764e9746159 (patch) | |
| tree | fd509f0338c4b1b07a4308cf6a6a279cc1bf5d66 /sound | |
| parent | 9b7f263403ab9d928c5482d1101f2f8077ac0202 (diff) | |
ASoC: simple-card: fix an use-after-free in simple_for_each_link()
[ Upstream commit 27862d5a3325bc531ec15e3c607e44aa0fd57f6f ]
The codec variable is still being used after the of_node_put() call,
which may result in use-after-free.
Fixes: d947cdfd4be2 ("ASoC: simple-card: cleanup DAI link loop method - step1")
Link: https://lore.kernel.org/r/1562743509-30496-3-git-send-email-wen.yang99@zte.com.cn
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/generic/simple-card.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 544064fdc780..2712a2b20102 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -378,8 +378,6 @@ static int simple_for_each_link(struct asoc_simple_priv *priv, goto error; } - of_node_put(codec); - /* get convert-xxx property */ memset(&adata, 0, sizeof(adata)); for_each_child_of_node(node, np) @@ -401,11 +399,13 @@ static int simple_for_each_link(struct asoc_simple_priv *priv, ret = func_noml(priv, np, codec, li, is_top); if (ret < 0) { + of_node_put(codec); of_node_put(np); goto error; } } + of_node_put(codec); node = of_get_next_child(top, node); } while (!is_top && node); |