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authorBjörn Steinbrink <B.Steinbrink@gmx.de>2008-03-31 04:22:53 +0200
committerIngo Molnar <mingo@elte.hu>2008-04-17 17:40:45 +0200
commit223ac2f42d49dd0324ca02ea15897ead1a2f5133 (patch)
tree662ec6d6e8e467c6397fa86423ceadb3c62f4b60 /arch/x86/pci
parent4b119e21d0c66c22e8ca03df05d9de623d0eb50f (diff)
x86, pci: fix off-by-one errors in some pirq warnings
fix bogus pirq warnings reported in: http://bugzilla.kernel.org/show_bug.cgi?id=10366 safe to be backported to v2.6.25 and earlier. Cc: stable@kernel.org Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/pci')
-rw-r--r--arch/x86/pci/irq.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index a8715861877e..579745ca6b66 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -200,7 +200,7 @@ static int pirq_ali_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
{
static const unsigned char irqmap[16] = { 0, 9, 3, 10, 4, 5, 7, 6, 1, 11, 0, 12, 0, 14, 0, 15 };
- WARN_ON_ONCE(pirq >= 16);
+ WARN_ON_ONCE(pirq > 16);
return irqmap[read_config_nybble(router, 0x48, pirq-1)];
}
@@ -209,7 +209,7 @@ static int pirq_ali_set(struct pci_dev *router, struct pci_dev *dev, int pirq, i
static const unsigned char irqmap[16] = { 0, 8, 0, 2, 4, 5, 7, 6, 0, 1, 3, 9, 11, 0, 13, 15 };
unsigned int val = irqmap[irq];
- WARN_ON_ONCE(pirq >= 16);
+ WARN_ON_ONCE(pirq > 16);
if (val) {
write_config_nybble(router, 0x48, pirq-1, val);
return 1;
@@ -260,7 +260,7 @@ static int pirq_via586_get(struct pci_dev *router, struct pci_dev *dev, int pirq
{
static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 };
- WARN_ON_ONCE(pirq >= 5);
+ WARN_ON_ONCE(pirq > 5);
return read_config_nybble(router, 0x55, pirqmap[pirq-1]);
}
@@ -268,7 +268,7 @@ static int pirq_via586_set(struct pci_dev *router, struct pci_dev *dev, int pirq
{
static const unsigned int pirqmap[5] = { 3, 2, 5, 1, 1 };
- WARN_ON_ONCE(pirq >= 5);
+ WARN_ON_ONCE(pirq > 5);
write_config_nybble(router, 0x55, pirqmap[pirq-1], irq);
return 1;
}
@@ -282,7 +282,7 @@ static int pirq_ite_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
{
static const unsigned char pirqmap[4] = { 1, 0, 2, 3 };
- WARN_ON_ONCE(pirq >= 4);
+ WARN_ON_ONCE(pirq > 4);
return read_config_nybble(router,0x43, pirqmap[pirq-1]);
}
@@ -290,7 +290,7 @@ static int pirq_ite_set(struct pci_dev *router, struct pci_dev *dev, int pirq, i
{
static const unsigned char pirqmap[4] = { 1, 0, 2, 3 };
- WARN_ON_ONCE(pirq >= 4);
+ WARN_ON_ONCE(pirq > 4);
write_config_nybble(router, 0x43, pirqmap[pirq-1], irq);
return 1;
}