[PATCH] soc: amlogic: Fix refcount leak in meson-secure-pwrc.c
Martin Blumenstingl
martin.blumenstingl at googlemail.com
Thu Jun 16 13:17:19 PDT 2022
Hello,
On Thu, Jun 16, 2022 at 4:50 PM Liang He <windhl at 126.com> wrote:
>
> In meson_secure_pwrc_probe(), there is a refcount leak in one fail
> path.
>
> Signed-off-by: Liang He <windhl at 126.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl at googlemail.com>
[...]
> pwrc = devm_kzalloc(&pdev->dev, sizeof(*pwrc), GFP_KERNEL);
> - if (!pwrc)
> + if (!pwrc) {
> + of_node_put(sm_np);
> return -ENOMEM;
> + }
Another approach would be to just move devm_kzalloc() a few lines
further up (above of_find_compatible_node()).
That would catch similar issues in future when someone wants to add
more code right after devm_kzalloc(). That said, I don't think that
this is a likely scenario so the patch is fine for me as-is.
Thanks a lot for submitting this!
Best regards,
Martin
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