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authorBjorn Helgaas <bjorn.helgaas@hp.com>2008-06-27 16:57:12 -0600
committerAndi Kleen <andi@basil.nowhere.org>2008-07-16 23:27:07 +0200
commitfe2cf598e6942abd8fb70fee230d74b1a1eae0d1 (patch)
tree9b812788832205f05d2d1cf3bdb654702a7824d0 /drivers/net/macmace.c
parentc227536b4cc2600fc9d22ba0067f699165f6621f (diff)
downloadlinux-next-fe2cf598e6942abd8fb70fee230d74b1a1eae0d1.tar.gz
PNPACPI: ignore _PRS interrupt numbers larger than PNP_IRQ_NR
ACPI Extended Interrupt Descriptors can encode 32-bit interrupt numbers, so an interrupt number may exceed the size of the bitmap we use to track possible IRQ settings. To avoid corrupting memory, complain and ignore too-large interrupt numbers. There's similar code in pnpacpi_parse_irq_option(), but I didn't change that because the small IRQ descriptor can only encode IRQs 0-15, which do not exceed bitmap size. In the future, we could handle IRQ numbers greater than PNP_IRQ_NR by replacing the bitmap with a table or list. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/net/macmace.c')
0 files changed, 0 insertions, 0 deletions