Robin Murphy cb216b84d6 swiotlb: Skip cache maintenance on map error ... If swiotlb_bounce_page() failed, calling arch_sync_dma_for_device() may lead to such delights as performing cache maintenance on whatever address phys_to_virt(SWIOTLB_MAP_ERROR) looks like, which is typically outside the kernel memory map and goes about as well as expected. Don't do that. Fixes: a4a4330db4 ("swiotlb: add support for non-coherent DMA") Tested-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Christoph Hellwig <hch@lst.de>		2018-11-21 18:47:58 +01:00
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coherent.c	dma-mapping: move all DMA mapping code to kernel/dma	2018-06-14 08:50:37 +02:00
contiguous.c	dma-mapping: fix panic caused by passing empty cma command line argument	2018-09-20 09:01:08 +02:00
debug.c	dma-debug: Check for drivers mapping invalid addresses in dma_map_single()	2018-10-08 09:44:17 +02:00
direct.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
Kconfig	dma-mapping: consolidate the dma mmap implementations	2018-09-20 09:01:16 +02:00
Makefile	dma-mapping: merge direct and noncoherent ops	2018-09-20 09:01:15 +02:00
mapping.c	dma-mapping: support non-coherent devices in dma_common_get_sgtable	2018-09-20 09:01:17 +02:00
swiotlb.c	swiotlb: Skip cache maintenance on map error	2018-11-21 18:47:58 +01:00
virt.c	dma-mapping: move all DMA mapping code to kernel/dma	2018-06-14 08:50:37 +02:00