There is a case called disable_plane callback function even if
plane->crtc is NULL from exynos_drm_encoder_disable and it will cause
NULL pointer reference error.
Signed-off-by: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
---
drivers/gpu/drm/exynos/exynos_drm_encoder.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
index 7e282e3..57de0bd 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -102,7 +102,7 @@ static void exynos_drm_encoder_disable(struct drm_encoder *encoder)
/* all planes connected to this encoder should be also disabled. */
drm_for_each_legacy_plane(plane, &dev->mode_config.plane_list) {
- if (plane->crtc == encoder->crtc)
+ if (plane->crtc && (plane->crtc == encoder->crtc))
plane->funcs->disable_plane(plane);
}
}
--
1.9.1
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