diff options
Diffstat (limited to 'arch/x86/kernel/apic/io_apic.c')
| -rw-r--r-- | arch/x86/kernel/apic/io_apic.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 2953bbf05c085..53aa234a6803f 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -812,6 +812,7 @@ static int irq_polarity(int idx) return IOAPIC_POL_HIGH; case MP_IRQPOL_RESERVED: pr_warn("IOAPIC: Invalid polarity: 2, defaulting to low\n"); + /* fall through */ case MP_IRQPOL_ACTIVE_LOW: default: /* Pointless default required due to do gcc stupidity */ return IOAPIC_POL_LOW; @@ -859,6 +860,7 @@ static int irq_trigger(int idx) return IOAPIC_EDGE; case MP_IRQTRIG_RESERVED: pr_warn("IOAPIC: Invalid trigger mode 2 defaulting to level\n"); + /* fall through */ case MP_IRQTRIG_LEVEL: default: /* Pointless default required due to do gcc stupidity */ return IOAPIC_LEVEL; @@ -2579,6 +2581,8 @@ static struct resource * __init ioapic_setup_resources(void) n *= nr_ioapics; mem = memblock_alloc(n, SMP_CACHE_BYTES); + if (!mem) + panic("%s: Failed to allocate %lu bytes\n", __func__, n); res = (void *)mem; mem += sizeof(struct resource) * nr_ioapics; @@ -2623,6 +2627,9 @@ fake_ioapic_page: #endif ioapic_phys = (unsigned long)memblock_alloc(PAGE_SIZE, PAGE_SIZE); + if (!ioapic_phys) + panic("%s: Failed to allocate %lu bytes align=0x%lx\n", + __func__, PAGE_SIZE, PAGE_SIZE); ioapic_phys = __pa(ioapic_phys); } set_fixmap_nocache(idx, ioapic_phys); |