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Commit 9ad703e9 authored by Inki Dae's avatar Inki Dae
Browse files

drm/exynos: g2d: fix null pointer dereference 



This patch fixes a null pointer dereference issue incurred by
calling g2d_remove when exynos_drm_platform_probe is failed.

cmdlist_pool of g2d is allocated when g2d sub driver is probed.
So if exynos_drm_platform_probe is failed, the g2d sub driver is
not probed and the cmdlist_pool is still NULL.

Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent f7c2f36f

drivers/gpu/drm/exynos/exynos_drm_g2d.c

+6 −3
Original line number Diff line number Diff line
@@ -302,10 +302,13 @@ static void g2d_fini_cmdlist(struct g2d_data *g2d) 
	struct exynos_drm_subdrv *subdrv = &g2d->subdrv;



	kfree(g2d->cmdlist_node);



	if (g2d->cmdlist_pool_virt && g2d->cmdlist_pool) {

		dma_free_attrs(subdrv->drm_dev->dev, G2D_CMDLIST_POOL_SIZE,

				g2d->cmdlist_pool_virt,

				g2d->cmdlist_pool, &g2d->cmdlist_dma_attrs);

	}

}



static struct g2d_cmdlist_node *g2d_get_cmdlist(struct g2d_data *g2d)

{