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drm/meson: Fix refcount leak in meson_encoder_hdmi_init

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commit 7381076809 upstream.

of_find_device_by_node() takes reference, we should use put_device()
to release it when not need anymore.
Add missing put_device() in error path to avoid refcount
leak.

Fixes: 0af5e0b411 ("drm/meson: encoder_hdmi: switch to bridge DRM_BRIDGE_ATTACH_NO_CONNECTOR")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220511054052.51981-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Miaoqian Lin 2022-05-11 09:40:51 +04:00 committed by Greg Kroah-Hartman
parent a8278cf3f0
commit 50446ac345
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/meson/meson_encoder_hdmi.c
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@ -438,8 +438,10 @@ int meson_encoder_hdmi_init(struct meson_drm *priv)
cec_fill_conn_info_from_drm(&conn_info, meson_encoder_hdmi->connector);
notifier = cec_notifier_conn_register(&pdev->dev, NULL, &conn_info);
if (!notifier)
if (!notifier) {
put_device(&pdev->dev);
return -ENOMEM;
}
meson_encoder_hdmi->cec_notifier = notifier;
}