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drm/exynos: fix missed calling of drm_prime_gem_destroy()

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When obj->import_attach is existed, code calling drm_prime_gem_destroy()
was removed from commit 67e93c808b ("drm/exynos: stop copying sg
table"), and it's a fault.

The drm_prime_gem_destroy() is cleanup function which GEM drivers need
to call when they use drm_gem_prime_import() to import dma-bufs, so
exynos-drm driver using drm_gem_prime_import() needs calling
drm_prime_gem_destroy().

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Joonyoung Shim 2015-09-16 14:14:54 +09:00 committed by Inki Dae
parent 5e0fb1f9eb
commit 7c93537a47
2 changed files with 7 additions and 4 deletions
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9
drivers/gpu/drm/exynos/exynos_drm_gem.c
View File

@ -157,11 +157,10 @@ void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj)
* once dmabuf's refcount becomes 0.
*/
if (obj->import_attach)
goto out;
drm_prime_gem_destroy(obj, exynos_gem_obj->sgt);
else
exynos_drm_free_buf(exynos_gem_obj);
exynos_drm_free_buf(exynos_gem_obj);
out:
drm_gem_free_mmap_offset(obj);
/* release file pointer to gem object. */
@ -589,6 +588,8 @@ exynos_drm_gem_prime_import_sg_table(struct drm_device *dev,
if (ret < 0)
goto err_free_large;
exynos_gem_obj->sgt = sgt;
if (sgt->nents == 1) {
/* always physically continuous memory if sgt->nents is 1. */
exynos_gem_obj->flags |= EXYNOS_BO_CONTIG;

2
drivers/gpu/drm/exynos/exynos_drm_gem.h
View File

@ -39,6 +39,7 @@
* - this address could be physical address without IOMMU and
* device address with IOMMU.
* @pages: Array of backing pages.
* @sgt: Imported sg_table.
*
* P.S. this object would be transferred to user as kms_bo.handle so
* user can access the buffer through kms_bo.handle.
@ -52,6 +53,7 @@ struct exynos_drm_gem_obj {
dma_addr_t dma_addr;
struct dma_attrs dma_attrs;
struct page **pages;
struct sg_table *sgt;
};
struct page **exynos_gem_get_pages(struct drm_gem_object *obj, gfp_t gfpmask);