irq: fix irqpoll && sparseirq

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Steven Noonan reported a boot hang when using irqpoll and
CONFIG_HAVE_SPARSE_IRQ=y.

The irqpoll loop needs to be updated to not iterate from 1 to nr_irqs
but to iterate via for_each_irq_desc(). (in the former case desc can
be NULL which crashes the box)

Reported-by: Steven Noonan <steven@uplinklabs.net>
Tested-by: Steven Noonan <steven@uplinklabs.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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This commit is contained in:

Yinghai Lu 2008-09-15 01:53:50 -07:00 • committed by Ingo Molnar

parent 56ffa1a028

commit e00585bb7f

1 changed files with 11 additions and 6 deletions

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kernel/irq/spurious.c

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