-----Original Message----- From: Sachin Kamat [mailto:sachin.kamat@linaro.org] Sent: Monday, November 19, 2012 6:21 PM To: dri-devel@lists.freedesktop.org Cc: inki.dae@samsung.com; jy0922.shim@samsung.com;
sachin.kamat@linaro.org;
patches@linaro.org Subject: [PATCH 1/1] drm/exynos: Fix potential NULL pointer dereference in exynos_drm_encoder.c
Check overlay_ops is not NULL as checked in the previous 'if' condition. Fixes the following smatch error: drivers/gpu/drm/exynos/exynos_drm_encoder.c:509 exynos_drm_encoder_plane_disable() error: we previously assumed 'overlay_ops' could be null (see line 499)
Signed-off-by: Sachin Kamat sachin.kamat@linaro.org
drivers/gpu/drm/exynos/exynos_drm_encoder.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index e51503f..a44238e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -506,6 +506,6 @@ void exynos_drm_encoder_plane_disable(struct drm_encoder *encoder, void *data) * because the setting for disabling the overlay will be updated * at vsync. */
- if (overlay_ops->wait_for_vblank)
- if (overlay_ops && overlay_ops->wait_for_vblank) overlay_ops->wait_for_vblank(manager->dev);
This code will be removed at -next.
Thanks, Inki Dae
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1.7.4.1