dma_free_coherent() needs irqs enabled (sigh)

[profile/ivi/kernel-x86-ivi.git] / arch / x86 / kernel / pci-dma_64.c

diff --git a/arch/x86/kernel/pci-dma_64.c b/arch/x86/kernel/pci-dma_64.c
index 2971144..9576a2e 100644 (file)
--- a/arch/x86/kernel/pci-dma_64.c
+++ b/arch/x86/kernel/pci-dma_64.c
@@ -167,6 +167,7 @@ EXPORT_SYMBOL(dma_alloc_coherent);
 void dma_free_coherent(struct device *dev, size_t size,
                         void *vaddr, dma_addr_t bus)
 {
+       WARN_ON(irqs_disabled());       /* for portability */
        if (dma_ops->unmap_single)
                dma_ops->unmap_single(dev, bus, size, 0);
        free_pages((unsigned long)vaddr, get_order(size));