forked from Minki/linux
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: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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@ -150,8 +150,12 @@ static int exynos_drm_connector_get_modes(struct drm_connector *connector)
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count = drm_add_edid_modes(connector, edid);
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kfree(edid);
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} else {
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struct drm_display_mode *mode = drm_mode_create(connector->dev);
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struct exynos_drm_panel_info *panel;
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struct drm_display_mode *mode = drm_mode_create(connector->dev);
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if (!mode) {
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DRM_ERROR("failed to create a new display mode.\n");
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return 0;
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}
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if (display_ops->get_panel)
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panel = display_ops->get_panel(manager->dev);
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