diff options
| author | Björn Steinbrink <B.Steinbrink@gmx.de> | 2008-03-31 04:22:53 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-17 17:40:45 +0200 |
| commit | 223ac2f42d49dd0324ca02ea15897ead1a2f5133 (patch) | |
| tree | 662ec6d6e8e467c6397fa86423ceadb3c62f4b60 /arch/x86 | |
| parent | 4b119e21d0c66c22e8ca03df05d9de623d0eb50f (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')
| -rw-r--r-- | arch/x86/pci/irq.c | 12 |
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; } |