From: Michael Ellerman <michael@ellerman•id.au>
To: Paul Mackerras <paulus@samba•org>
Cc: linuxppc-dev@ozlabs•org
Subject: [PATCH] Make irq_dispose_mapping(NO_IRQ) a nop
Date: Tue, 24 Oct 2006 13:37:34 +1000 [thread overview]
Message-ID: <20061024033735.AF71B67B6D@ozlabs.org> (raw)
It makes for a friendlier API if irq_dispose_mapping(NO_IRQ) is a
nop, rather than triggering a WARN_ON.
Signed-off-by: Michael Ellerman <michael@ellerman•id.au>
---
arch/powerpc/kernel/irq.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
Index: git/arch/powerpc/kernel/irq.c
===================================================================
--- git.orig/arch/powerpc/kernel/irq.c
+++ git/arch/powerpc/kernel/irq.c
@@ -626,10 +626,14 @@ EXPORT_SYMBOL_GPL(irq_of_parse_and_map);
void irq_dispose_mapping(unsigned int virq)
{
- struct irq_host *host = irq_map[virq].host;
+ struct irq_host *host;
irq_hw_number_t hwirq;
unsigned long flags;
+ if (virq == NO_IRQ)
+ return;
+
+ host = irq_map[virq].host;
WARN_ON (host == NULL);
if (host == NULL)
return;
next reply other threads:[~2006-10-24 3:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-24 3:37 Michael Ellerman [this message]
2006-10-24 3:52 ` [PATCH] Make irq_dispose_mapping(NO_IRQ) a nop Benjamin Herrenschmidt
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