cb216b84d6
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: a4a4330db46a ("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>
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|---|---|---|
| .. | ||
| coherent.c | ||
| contiguous.c | ||
| debug.c | ||
| direct.c | ||
| Kconfig | ||
| Makefile | ||
| mapping.c | ||
| swiotlb.c | ||
| virt.c | ||