From c1c3a526bb4ddbec7639a9fb3b84fede25b201d9 Mon Sep 17 00:00:00 2001
From: Gavin Shan <gwshan@linux.vnet.ibm.com>
Date: Fri, 23 Jan 2015 14:25:05 +1100
Subject: [PATCH] powerpc/powernv: Separate function for OPAL IRQ setup

The patch put the OPAL interrupt setup logic in opal_init() into
seperate function opal_irq_init() for easier code maintaining. The
patch doesn't introduce logic changes except:

   * Rename variable names.
   * Release virtual IRQ upon error from request_irq().
   * Don't cache the virtual IRQ to opal_irqs[] upon error from
     request_irq().

Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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