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drm/exynos: ipp: remove usless list_empty() functions 

list_for_each_entry() handles empty lists, so there is no
need to check whether the list is empty first.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Seong-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
YoungJun Cho 2014-05-26 10:17:15 +02:00 коммит произвёл Inki Dae
Родитель 97f98a3b94
Коммит c66ce40b1b
1 изменённых файлов: 9 добавлений и 52 удалений
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61
drivers/gpu/drm/exynos/exynos_drm_ipp.c
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@ -276,11 +276,6 @@ static struct exynos_drm_ippdrv *ipp_find_drv_by_handle(u32 prop_id)
DRM_DEBUG_KMS("prop_id[%d]\n", prop_id);
if (list_empty(&exynos_drm_ippdrv_list)) {
DRM_DEBUG_KMS("ippdrv_list is empty.\n");
return ERR_PTR(-ENODEV);
}
/*
* This case is search ipp driver by prop_id handle.
* sometimes, ipp subsystem find driver by prop_id.
@ -289,11 +284,9 @@ static struct exynos_drm_ippdrv *ipp_find_drv_by_handle(u32 prop_id)
list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]\n", count++, (int)ippdrv);
if (!list_empty(&ippdrv->cmd_list)) {
list_for_each_entry(c_node, &ippdrv->cmd_list, list)
if (c_node->property.prop_id == prop_id)
return ippdrv;
}
list_for_each_entry(c_node, &ippdrv->cmd_list, list)
if (c_node->property.prop_id == prop_id)
return ippdrv;
}
return ERR_PTR(-ENODEV);
@ -573,11 +566,6 @@ static int ipp_check_mem_list(struct drm_exynos_ipp_cmd_node *c_node)
/* source/destination memory list */
head = &c_node->mem_list[i];
if (list_empty(head)) {
DRM_DEBUG_KMS("%s memory empty.\n", i ? "dst" : "src");
continue;
}
/* find memory node entry */
list_for_each_entry(m_node, head, list) {
DRM_DEBUG_KMS("%s,count[%d]m_node[0x%x]\n",
@ -816,11 +804,6 @@ static void ipp_put_event(struct drm_exynos_ipp_cmd_node *c_node,
struct drm_exynos_ipp_send_event *e, *te;
int count = 0;
if (list_empty(&c_node->event_list)) {
DRM_DEBUG_KMS("event_list is empty.\n");
return;
}
list_for_each_entry_safe(e, te, &c_node->event_list, base.link) {
DRM_DEBUG_KMS("count[%d]e[0x%x]\n", count++, (int)e);
@ -918,14 +901,12 @@ static void ipp_clean_queue_buf(struct drm_device *drm_dev,
{
struct drm_exynos_ipp_mem_node *m_node, *tm_node;
if (!list_empty(&c_node->mem_list[qbuf->ops_id])) {
/* delete list */
list_for_each_entry_safe(m_node, tm_node,
&c_node->mem_list[qbuf->ops_id], list) {
if (m_node->buf_id == qbuf->buf_id &&
m_node->ops_id == qbuf->ops_id)
ipp_put_mem_node(drm_dev, c_node, m_node);
}
/* delete list */
list_for_each_entry_safe(m_node, tm_node,
&c_node->mem_list[qbuf->ops_id], list) {
if (m_node->buf_id == qbuf->buf_id &&
m_node->ops_id == qbuf->ops_id)
ipp_put_mem_node(drm_dev, c_node, m_node);
}
}
@ -1361,11 +1342,6 @@ static int ipp_stop_property(struct drm_device *drm_dev,
/* source/destination memory list */
head = &c_node->mem_list[i];
if (list_empty(head)) {
DRM_DEBUG_KMS("mem_list is empty.\n");
break;
}
list_for_each_entry_safe(m_node, tm_node,
head, list) {
ret = ipp_put_mem_node(drm_dev, c_node,
@ -1381,11 +1357,6 @@ static int ipp_stop_property(struct drm_device *drm_dev,
/* destination memory list */
head = &c_node->mem_list[EXYNOS_DRM_OPS_DST];
if (list_empty(head)) {
DRM_DEBUG_KMS("mem_list is empty.\n");
break;
}
list_for_each_entry_safe(m_node, tm_node, head, list) {
ret = ipp_put_mem_node(drm_dev, c_node, m_node);
if (ret) {
@ -1398,11 +1369,6 @@ static int ipp_stop_property(struct drm_device *drm_dev,
/* source memory list */
head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC];
if (list_empty(head)) {
DRM_DEBUG_KMS("mem_list is empty.\n");
break;
}
list_for_each_entry_safe(m_node, tm_node, head, list) {
ret = ipp_put_mem_node(drm_dev, c_node, m_node);
if (ret) {
@ -1790,15 +1756,7 @@ static void ipp_subdrv_close(struct drm_device *drm_dev, struct device *dev,
DRM_DEBUG_KMS("for priv[0x%x]\n", (int)priv);
if (list_empty(&exynos_drm_ippdrv_list)) {
DRM_DEBUG_KMS("ippdrv_list is empty.\n");
goto err_clear;
}
list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
if (list_empty(&ippdrv->cmd_list))
continue;
list_for_each_entry_safe(c_node, tc_node,
&ippdrv->cmd_list, list) {
DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]\n",
@ -1825,7 +1783,6 @@ static void ipp_subdrv_close(struct drm_device *drm_dev, struct device *dev,
}
}
err_clear:
kfree(priv);
return;
}