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drm/exynos: Fix error routine to getting dma addr. 

This patch fixes error routine when g2d_userptr_get_dma_add is failed.
When sg_alloc_table_from_pages() is failed, it doesn't call
sg_free_table() anymore.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
YoungJun Cho 2013-03-11 19:48:05 +09:00 committed by Inki Dae
parent e2779e1698
commit 067ed3311f
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/exynos/exynos_drm_g2d.c
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@ -450,7 +450,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
DMA_BIDIRECTIONAL);
if (ret < 0) {
DRM_ERROR("failed to map sgt with dma region.\n");
goto err_free_sgt;
goto err_sg_free_table;
}
g2d_userptr->dma_addr = sgt->sgl[0].dma_address;
@ -467,8 +467,10 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
return &g2d_userptr->dma_addr;
err_free_sgt:
err_sg_free_table:
sg_free_table(sgt);
err_free_sgt:
kfree(sgt);
sgt = NULL;