ARM: amba: make irq 0 invalid
authorRussell King <rmk+kernel@arm.linux.org.uk>
Sun, 18 Dec 2011 11:31:51 +0000 (11:31 +0000)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Wed, 25 Jan 2012 11:02:02 +0000 (11:02 +0000)
Fix core bus and MMCI such that irq 0 means that there is no IRQ
attached.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

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