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authorIngo Molnar <mingo@elte.hu>2008-10-21 15:49:59 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-21 15:54:40 +0200
commite9f95e637320efe1936b647308ddf4ec5b8e0311 (patch)
tree0b192bfac0d0a8e696c039c067a20c0126fae641 /include/linux/irqnr.h
parent0b3682ba33c59a362901b478bdab965da888b350 (diff)
downloadlinux-linaro-stable-e9f95e637320efe1936b647308ddf4ec5b8e0311.tar.gz
genirq: fix off by one and coding style
Fix off-by-one in for_each_irq_desc_reverse(). Impact is near zero in practice, because nothing substantial wants to iterate down to IRQ#0 - but fix it nevertheless. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/irqnr.h')
-rw-r--r--include/linux/irqnr.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h
index 3171ddc3b39d..452c280c8115 100644
--- a/include/linux/irqnr.h
+++ b/include/linux/irqnr.h
@@ -13,9 +13,9 @@ extern int nr_irqs;
# define for_each_irq_desc(irq, desc) \
for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++)
-# define for_each_irq_desc_reverse(irq, desc) \
- for (irq = nr_irqs -1, desc = irq_desc + (nr_irqs -1 ); \
- irq > 0; irq--, desc--)
+# define for_each_irq_desc_reverse(irq, desc) \
+ for (irq = nr_irqs - 1, desc = irq_desc + (nr_irqs - 1); \
+ irq >= 0; irq--, desc--)
#endif
#define for_each_irq_nr(irq) \