[PATCH] drm/rockchip: Fix panic on reboot when DRM device fails to bind
Ondřej Jirman <[email protected]>
| Newsgroups | org.infradead.lists.linux-rockchip,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
From: Ondrej Jirman <[email protected]> When DRM device is freed, we need to clear the drvdata pointer, because it now points to invalid memory. Signed-off-by: Ondrej Jirman <[email protected]> --- drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index 3099408e9d05..8b9992843162 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -210,6 +210,7 @@ static int rockchip_drm_bind(struct device *dev) component_unbind_all(dev, drm_dev); err_free: drm_dev_put(drm_dev); + dev_set_drvdata(dev, NULL); return ret; } @@ -226,6 +227,7 @@ static void rockchip_drm_unbind(struct device *dev) rockchip_iommu_cleanup(drm_dev); drm_dev_put(drm_dev); + dev_set_drvdata(dev, NULL); } DEFINE_DRM_GEM_FOPS(rockchip_drm_driver_fops); -- 2.54.0 _______________________________________________ Linux-rockchip mailing list [email protected] http://lists.infradead.org/mailman/listinfo/linux-rockchip