Message ID | 1480635817-1258-7-git-send-email-laurent.pinchart+renesas@ideasonboard.com (mailing list archive) |
---|---|
State | Superseded |
Delegated to: | Geert Uytterhoeven |
Headers | show |
diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c index ef10bb866b2f..488dc1a9204f 100644 --- a/drivers/gpu/drm/bridge/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/dw-hdmi.c @@ -1805,7 +1805,8 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id) if (intr_stat & HDMI_IH_PHY_STAT0_HPD) { dev_dbg(hdmi->dev, "EVENT=%s\n", phy_int_pol & HDMI_PHY_HPD ? "plugin" : "plugout"); - drm_helper_hpd_irq_event(hdmi->bridge.dev); + if (hdmi->bridge.dev) + drm_helper_hpd_irq_event(hdmi->bridge.dev); } hdmi_writeb(hdmi, intr_stat, HDMI_IH_PHY_STAT0);
Hotplug events should only be forwarded to the DRM core by the interrupt handler when the bridge has been attached, otherwise the DRM device pointer will be NULL, resulting in a crash. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> --- drivers/gpu/drm/bridge/dw-hdmi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)