On bind we will register the HDMI codec device but we don't unregister
it on unbind, leading to a device leakage. Unregister our device at
unbind.
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
---
drivers/gpu/drm/vc4/vc4_hdmi.c | 8 ++++++++
drivers/gpu/drm/vc4/vc4_hdmi.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 502d5bea5f61..395a9e9c1e5a 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1746,6 +1746,7 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *vc4_hdmi)
dev_err(dev, "Couldn't register the HDMI codec: %ld\n", PTR_ERR(codec_pdev));
return PTR_ERR(codec_pdev);
}
+ vc4_hdmi->audio.codec_pdev = codec_pdev;
dai_link->cpus = &vc4_hdmi->audio.cpu;
dai_link->codecs = &vc4_hdmi->audio.codec;
@@ -1785,6 +1786,12 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *vc4_hdmi)
}
+static void vc4_hdmi_audio_exit(struct vc4_hdmi *vc4_hdmi)
+{
+ platform_device_unregister(vc4_hdmi->audio.codec_pdev);
+ vc4_hdmi->audio.codec_pdev = NULL;
+}
+
static irqreturn_t vc4_hdmi_hpd_irq_thread(int irq, void *priv)
{
struct vc4_hdmi *vc4_hdmi = priv;
@@ -2689,6 +2696,7 @@ static void vc4_hdmi_unbind(struct device *dev, struct device *master,
kfree(vc4_hdmi->hdmi_regset.regs);
kfree(vc4_hdmi->hd_regset.regs);
+ vc4_hdmi_audio_exit(vc4_hdmi);
vc4_hdmi_cec_exit(vc4_hdmi);
vc4_hdmi_hotplug_exit(vc4_hdmi);
vc4_hdmi_connector_destroy(&vc4_hdmi->connector);
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h
index db53500a8435..275c4674d50f 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.h
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.h
@@ -113,6 +113,7 @@ struct vc4_hdmi_audio {
struct snd_soc_dai_link_component platform;
struct snd_dmaengine_dai_dma_data dma_data;
struct hdmi_audio_infoframe infoframe;
+ struct platform_device *codec_pdev;
bool streaming;
};
--
2.34.1
