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drm/exynos/ipp: traverse ipp drivers list safely 

On ipp subsystem removal list of ipp drivers is traversed
and their members are deleted. To do it properly safe version
of list_for_each* should be used.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Andrzej Hajda 2014-09-09 15:16:05 +02:00 committed by Inki Dae
parent 53c5558d95
commit a36ed46687
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/exynos/exynos_drm_ipp.c
View File

@ -1605,11 +1605,11 @@ err:
static void ipp_subdrv_remove(struct drm_device *drm_dev, struct device *dev) static void ipp_subdrv_remove(struct drm_device *drm_dev, struct device *dev)
{ {
struct exynos_drm_ippdrv *ippdrv; struct exynos_drm_ippdrv *ippdrv, *t;
struct ipp_context *ctx = get_ipp_context(dev); struct ipp_context *ctx = get_ipp_context(dev);
/* get ipp driver entry */ /* get ipp driver entry */
list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { list_for_each_entry_safe(ippdrv, t, &exynos_drm_ippdrv_list, drv_list) {
if (is_drm_iommu_supported(drm_dev)) if (is_drm_iommu_supported(drm_dev))
drm_iommu_detach_device(drm_dev, ippdrv->dev); drm_iommu_detach_device(drm_dev, ippdrv->dev);