Commit 53bd5556 authored by Sachin Kamat's avatar Sachin Kamat Committed by Inki Dae
Browse files

drm/exynos: Fix potential NULL pointer dereference 



drm_mode_create() returns NULL if it fails to create
a new display mode. Check the value returned to avoid NULL
pointer deferencing later.

Signed-off-by: default avatarSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
parent 291257cf

drivers/gpu/drm/exynos/exynos_drm_connector.c

+5 −1
Original line number Diff line number Diff line
@@ -150,8 +150,12 @@ static int exynos_drm_connector_get_modes(struct drm_connector *connector) 
		count = drm_add_edid_modes(connector, edid);

		kfree(edid);

	} else {

		struct drm_display_mode *mode = drm_mode_create(connector->dev);

		struct exynos_drm_panel_info *panel;

		struct drm_display_mode *mode = drm_mode_create(connector->dev);

		if (!mode) {

			DRM_ERROR("failed to create a new display mode.\n");

			return 0;

		}



		if (display_ops->get_panel)

			panel = display_ops->get_panel(manager->dev);

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