Re: [PATCH v2 2/4] drm/ttm: Clear all DMA mappings on demand

2021-08-26 Thread Christian König
Am 26.08.21 um 19:27 schrieb Andrey Grodzovsky: Used by drivers supporting hot unplug to handle all DMA IOMMU group related dependencies before the group is removed during device removal and we try to access it after free when last device pointer from user space is dropped. Signed-off-by: And

[PATCH v2 2/4] drm/ttm: Clear all DMA mappings on demand

2021-08-26 Thread Andrey Grodzovsky
Used by drivers supporting hot unplug to handle all DMA IOMMU group related dependencies before the group is removed during device removal and we try to access it after free when last device pointer from user space is dropped. Signed-off-by: Andrey Grodzovsky --- drivers/gpu/drm/ttm/ttm_device.c