[PATCH 1/7] drm/exynos: Fix error routine to getting dma addr.

[Inki Dae]

From: YoungJun Cho <yj44....@samsung.com>

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 at samsung.com>
Signed-off-by: Inki Dae <inki.dae at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
---
 drivers/gpu/drm/exynos/exynos_drm_g2d.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c 
b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index 3b0da03..28b7112 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -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;

-- 
1.7.4.1