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PCI: dwc: Fix inverted condition of DMA mask setup warning

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Commit 660c486590 ("PCI: dwc: Set 32-bit DMA mask for MSI target address
allocation") added dma_mask_set() call to explicitly set 32-bit DMA mask
for MSI message mapping, but for now it throws a warning on ret == 0, while
dma_set_mask() returns 0 in case of success.

Fix this by inverting the condition.

[bhelgaas: join string to make it greppable]
Fixes: 660c486590 ("PCI: dwc: Set 32-bit DMA mask for MSI target address allocation")
Link: https://lore.kernel.org/r/20201222150708.67983-1-alobakin@pm.me
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Alexander Lobakin 2020-12-22 15:07:43 +00:00 committed by Bjorn Helgaas
parent 275e88b06a
commit 99e629f14b
1 changed files with 2 additions and 6 deletions
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8
drivers/pci/controller/dwc/pcie-designware-host.c
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@ -397,12 +397,8 @@ int dw_pcie_host_init(struct pcie_port *pp)
pp);
ret = dma_set_mask(pci->dev, DMA_BIT_MASK(32));
if (!ret) {
dev_warn(pci->dev,
"Failed to set DMA mask to 32-bit. "
"Devices with only 32-bit MSI support"
" may not work properly\n");
}
if (ret)
dev_warn(pci->dev, "Failed to set DMA mask to 32-bit. Devices with only 32-bit MSI support may not work properly\n");
pp->msi_data = dma_map_single_attrs(pci->dev, &pp->msi_msg,
sizeof(pp->msi_msg),