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drm/exynos: Clear drvdata after component unbind

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When components are unbound, DRM driver is unregistered and freed,
so clear drvdata to avoid potential use-after-free issue in
suspend/resume paths.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Marek Szyprowski 2017-10-09 10:44:01 +02:00 committed by Inki Dae
parent 0a51897bfa
commit 238604ca0b
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/exynos/exynos_drm_drv.c
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@ -430,6 +430,7 @@ static void exynos_drm_unbind(struct device *dev)
kfree(drm->dev_private);
drm->dev_private = NULL;
dev_set_drvdata(dev, NULL);
drm_dev_unref(drm);
}