drm/exynos/ipp: remove incorrect checks of list_first_entry result

list_first_entry does not return NULL on empty list so this check
does not make sense. Moreover there is already code which prevents calling
list_first_entry on empty lists.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

1 files changed, 0 insertions, 15 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
index f84ef8a90592..89ff7e34a6fb 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
@@ -1277,11 +1277,6 @@ static int ipp_start_property(struct exynos_drm_ippdrv *ippdrv,
 
                         m_node = list_first_entry(head,
                                 struct drm_exynos_ipp_mem_node, list);
-                        if (!m_node) {
-                                DRM_ERROR("failed to get node.\n");
-                                ret = -EFAULT;
-                                goto err_unlock;
-                        }
 
                         DRM_DEBUG_KMS("m_node[0x%x]\n", (int)m_node);
 
@@ -1539,11 +1534,6 @@ static int ipp_send_event(struct exynos_drm_ippdrv *ippdrv,
 
                         m_node = list_first_entry(head,
                                 struct drm_exynos_ipp_mem_node, list);
-                        if (!m_node) {
-                                DRM_ERROR("empty memory node.\n");
-                                ret = -ENOMEM;
-                                goto err_mem_unlock;
-                        }
 
                         tbuf_id[i] = m_node->buf_id;
                         DRM_DEBUG_KMS("%s buf_id[%d]\n",
@@ -1580,11 +1570,6 @@ static int ipp_send_event(struct exynos_drm_ippdrv *ippdrv,
 
                 m_node = list_first_entry(head,
                         struct drm_exynos_ipp_mem_node, list);
-                if (!m_node) {
-                        DRM_ERROR("empty memory node.\n");
-                        ret = -ENOMEM;
-                        goto err_mem_unlock;
-                }
 
                 tbuf_id[EXYNOS_DRM_OPS_SRC] = m_node->buf_id;