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pci: Let pci_dma_write() propagate MemTxResult
pci_dma_rw() returns a MemTxResult type. Do not discard it, return it to the caller. Reviewed-by: Li Qiang <liq3ea@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20201023151923.3243652-11-philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -819,8 +819,20 @@ static inline MemTxResult pci_dma_read(PCIDevice *dev, dma_addr_t addr,
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return pci_dma_rw(dev, addr, buf, len, DMA_DIRECTION_TO_DEVICE);
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}
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static inline int pci_dma_write(PCIDevice *dev, dma_addr_t addr,
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const void *buf, dma_addr_t len)
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/**
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* pci_dma_write: Write to address space from PCI device.
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*
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* Return a MemTxResult indicating whether the operation succeeded
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* or failed (eg unassigned memory, device rejected the transaction,
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* IOMMU fault).
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*
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* @dev: #PCIDevice doing the memory access
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* @addr: address within the #PCIDevice address space
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* @buf: buffer with the data transferred
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* @len: the number of bytes to write
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*/
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static inline MemTxResult pci_dma_write(PCIDevice *dev, dma_addr_t addr,
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const void *buf, dma_addr_t len)
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{
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return pci_dma_rw(dev, addr, (void *) buf, len, DMA_DIRECTION_FROM_DEVICE);
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}
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