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PCI: rcar: Fix error handling of irq_of_parse_and_map()

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Return value of irq_of_parse_and_map() is unsigned int, with 0 indicating
failure, so testing for negative result never works.

Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Phil Edworthy <phil.edworthy@renesas.com>
This commit is contained in:
Dmitry Torokhov 2014-11-14 14:21:53 -08:00 committed by Bjorn Helgaas
parent 97bf6af1f9
commit c51d411fe1
1 changed files with 2 additions and 2 deletions
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4
drivers/pci/host/pcie-rcar.c
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@ -757,7 +757,7 @@ static int rcar_pcie_get_resources(struct platform_device *pdev,
goto err_map_reg; goto err_map_reg;
i = irq_of_parse_and_map(pdev->dev.of_node, 0); i = irq_of_parse_and_map(pdev->dev.of_node, 0);
if (i < 0) { if (!i) {
dev_err(pcie->dev, "cannot get platform resources for msi interrupt\n"); dev_err(pcie->dev, "cannot get platform resources for msi interrupt\n");
err = -ENOENT; err = -ENOENT;
goto err_map_reg; goto err_map_reg;
@ -765,7 +765,7 @@ static int rcar_pcie_get_resources(struct platform_device *pdev,
pcie->msi.irq1 = i; pcie->msi.irq1 = i;
i = irq_of_parse_and_map(pdev->dev.of_node, 1); i = irq_of_parse_and_map(pdev->dev.of_node, 1);
if (i < 0) { if (!i) {
dev_err(pcie->dev, "cannot get platform resources for msi interrupt\n"); dev_err(pcie->dev, "cannot get platform resources for msi interrupt\n");
err = -ENOENT; err = -ENOENT;
goto err_map_reg; goto err_map_reg;