AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-28 11:18:45 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/exynos: g2d: fix null pointer dereference

Browse Source 
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: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Inki Dae 2014-11-07 20:31:08 +09:00
parent fbdf093d62
commit 2d15118750
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/exynos/exynos_drm_g2d.c
View File

@ -302,9 +302,12 @@ static void g2d_fini_cmdlist(struct g2d_data *g2d)
struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
kfree(g2d->cmdlist_node);
dma_free_attrs(subdrv->drm_dev->dev, G2D_CMDLIST_POOL_SIZE,
g2d->cmdlist_pool_virt,
g2d->cmdlist_pool, &g2d->cmdlist_dma_attrs);
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)