From: Finn Thain <fthain@xxxxxxxxxxxxxxxxxxx>
Date: Sat, 17 Apr 2010 13:16:04 +1000 (EST)
Change an error return code from -EAGAIN to -EBUSY since the former is
misleading.
Nubus slots are geographically addressed and their irqs are equally
inflexible. -EAGAIN is misleading because retrying will not help fix
whatever bug it was that made the irq unavailable.
request_irq() itself returns an appropriate error code, so the
correct change is to do:
err = request_irq( ... );
if (err) {
...
and return 'err'.
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