PCI: arch/i386/kernel/pci-dma.c: ioremap balanced with iounmap
ioremap must be balanced by an iounmap and failing to do so can result in a memory leak. Tested (compilation only): - using allmodconfig - making sure the files are compiling without any warning/error due to new changes Signed-off-by: Amol Lad <amol@verismonetworks.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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1 changed files with 3 additions and 1 deletions
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@ -75,7 +75,7 @@ EXPORT_SYMBOL(dma_free_coherent);
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int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
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dma_addr_t device_addr, size_t size, int flags)
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{
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void __iomem *mem_base;
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void __iomem *mem_base = NULL;
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int pages = size >> PAGE_SHIFT;
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int bitmap_size = (pages + 31)/32;
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@ -114,6 +114,8 @@ int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
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free1_out:
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kfree(dev->dma_mem->bitmap);
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out:
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if (mem_base)
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iounmap(mem_base);
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return 0;
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}
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EXPORT_SYMBOL(dma_declare_coherent_memory);
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