Messages in this thread | | | Date | Sun, 21 Oct 2007 21:42:09 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH] return hidden bug |
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On Mon, 22 Oct 2007 03:05:05 +0200 Roel Kluin <12o3l@tiscali.nl> wrote:
> return hidden bug > > Signed-off-by: Roel Kluin <12o3l@tiscali.nl> > > diff --git a/arch/alpha/kernel/pci_iommu.c > b/arch/alpha/kernel/pci_iommu.c index e1c4707..6a69425 100644 > --- a/arch/alpha/kernel/pci_iommu.c > +++ b/arch/alpha/kernel/pci_iommu.c > @@ -365,8 +365,8 @@ pci_unmap_single(struct pci_dev *pdev, dma_addr_t > dma_addr, size_t size, printk(KERN_ERR "Bogus pci_unmap_single: > dma_addr %lx " " base %lx size %x\n", dma_addr, arena->dma_base, > arena->size); > - return; > BUG(); > + return; > } > > npages = calc_npages((dma_addr & ~PAGE_MASK) + size);
BUG() will terminate the process that runs into it, so you can just remove the return alltogether. If BUG() is hit, the return will never be reached.
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