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drm/etnaviv: fix gem_prime_get_sg_table to return new SG table

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The object internal SG table must not be returned, as the caller
will take ownership of the returned table.

Construct a new table from the object pages and return this one
instead.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
This commit is contained in:
Lucas Stach 2016-11-30 15:26:26 +01:00
parent 557800532e
commit 5f4a4a73f4
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
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@ -23,10 +23,12 @@
struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
int npages = obj->size >> PAGE_SHIFT;
BUG_ON(!etnaviv_obj->sgt); /* should have already pinned! */
if (WARN_ON(!etnaviv_obj->pages)) /* should have already pinned! */
return NULL;
return etnaviv_obj->sgt;
return drm_prime_pages_to_sg(etnaviv_obj->pages, npages);
}
void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj)