[PATCH RT 04/10] powerpc: 52xx: provide a default in mpc52xx_irqhost_map()

[Steven Rostedt]

From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>

My gcc-4.3.5 fails to compile due to:

|cc1: warnings being treated as errors
|arch/powerpc/platforms/52xx/mpc52xx_pic.c: In function â??mpc52xx_irqhost_mapâ??:
|arch/powerpc/platforms/52xx/mpc52xx_pic.c:343: error: â??irqchipâ?? may be used uninitialized in this function

since commit e34298c ("powerpc: 52xx: nop out unsupported critical
IRQs"). This warning is complete crap since only values 0â?¦3 are possible
which are checked but gcc fails to understand that. I wouldn't care much
but since this is compiled with -Werror I made this patch.
While add it, I replaced the warning from l2irq to l1irq since this is
the number that is evaluated.

Cc: stable-rt@xxxxxxxxxxxxxxx # 3.8
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
 arch/powerpc/platforms/52xx/mpc52xx_pic.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
index b89ef65..b69221b 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
@@ -373,8 +373,9 @@ static int mpc52xx_irqhost_map(struct irq_domain *h, unsigned int virq,
 	case MPC52xx_IRQ_L1_PERP: irqchip = &mpc52xx_periph_irqchip; break;
 	case MPC52xx_IRQ_L1_SDMA: irqchip = &mpc52xx_sdma_irqchip; break;
 	case MPC52xx_IRQ_L1_CRIT:
+	default:
 		pr_warn("%s: Critical IRQ #%d is unsupported! Nopping it.\n",
-			__func__, l2irq);
+			__func__, l1irq);
 		irq_set_chip(virq, &no_irq_chip);
 		return 0;
 	}
-- 
1.7.10.4


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