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30 lines
867 B
Diff
30 lines
867 B
Diff
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Fri, 29 Dec 2017 22:39:45 +0100
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Subject: [PATCH] PCI: iproc: Disable DMA mapping support
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This has been added in commit dd9d4e7498de3 ("PCI: iproc: Add inbound
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DMA mapping support") which causes a crash for bcma case. Function
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pci_dma_range_parser_init calls of_n_addr_cells with a NULL argument
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which causes a NULL pointer dereference.
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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---
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--- a/drivers/pci/host/pcie-iproc.c
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+++ b/drivers/pci/host/pcie-iproc.c
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@@ -1396,9 +1396,11 @@ int iproc_pcie_setup(struct iproc_pcie *
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}
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}
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+if (0) {
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ret = iproc_pcie_map_dma_ranges(pcie);
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if (ret && ret != -ENOENT)
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goto err_power_off_phy;
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+}
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#ifdef CONFIG_ARM
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pcie->sysdata.private_data = pcie;
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