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path: root/drivers/gpu/drm/sti/sti_hdmi.c
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Diffstat (limited to 'drivers/gpu/drm/sti/sti_hdmi.c')
-rw-r--r--drivers/gpu/drm/sti/sti_hdmi.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index 21b46a6465f0..f8bbae6393ef 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -1225,7 +1225,9 @@ static int hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf, size
struct drm_connector *connector = hdmi->drm_connector;
DRM_DEBUG_DRIVER("\n");
+ mutex_lock(&connector->eld_mutex);
memcpy(buf, connector->eld, min(sizeof(connector->eld), len));
+ mutex_unlock(&connector->eld_mutex);
return 0;
}