While working on fixing the emulated nvme device to pass more tests in
the blktests suite, I discovered that the pci_dma_rw function ignores
the return value of dma_memory_rw.

The nvme device needs to handle DMA errors gracefully in order to pass
the block/011 test ("disable PCI device while doing I/O") in the
blktests suite. This is only possible if the device knows if the DMA
transfer was successful or not.

I can't see what the reason for ignoring the return value would be. But
if there is a good reason, please enlighten me :)

Klaus Jensen (1):
  pci: pass along the return value of dma_memory_rw

 include/hw/pci/pci.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)


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