diff options
Diffstat (limited to 'arch/x86/kernel/io_apic_32.c')
| -rw-r--r-- | arch/x86/kernel/io_apic_32.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c index 6cf27319a91..c3a565bba10 100644 --- a/arch/x86/kernel/io_apic_32.c +++ b/arch/x86/kernel/io_apic_32.c @@ -1882,13 +1882,16 @@ __setup("no_timer_check", notimercheck); static int __init timer_irq_works(void) { unsigned long t1 = jiffies; + unsigned long flags; if (no_timer_check) return 1; + local_save_flags(flags); local_irq_enable(); /* Let ten ticks pass... */ mdelay((10 * 1000) / HZ); + local_irq_restore(flags); /* * Expect a few ticks at least, to be sure some possible @@ -2167,6 +2170,9 @@ static inline void __init check_timer(void) int apic1, pin1, apic2, pin2; int vector; unsigned int ver; + unsigned long flags; + + local_irq_save(flags); ver = apic_read(APIC_LVR); ver = GET_APIC_VERSION(ver); @@ -2219,7 +2225,7 @@ static inline void __init check_timer(void) } if (disable_timer_pin_1 > 0) clear_IO_APIC_pin(0, pin1); - return; + goto out; } clear_IO_APIC_pin(apic1, pin1); printk(KERN_ERR "..MP-BIOS bug: 8254 timer not connected to " @@ -2242,7 +2248,7 @@ static inline void __init check_timer(void) if (nmi_watchdog == NMI_IO_APIC) { setup_nmi(); } - return; + goto out; } /* * Cleanup, just in case ... @@ -2266,7 +2272,7 @@ static inline void __init check_timer(void) if (timer_irq_works()) { printk(" works.\n"); - return; + goto out; } apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | vector); printk(" failed.\n"); @@ -2282,11 +2288,13 @@ static inline void __init check_timer(void) if (timer_irq_works()) { printk(" works.\n"); - return; + goto out; } printk(" failed :(.\n"); panic("IO-APIC + timer doesn't work! Boot with apic=debug and send a " "report. Then try booting with the 'noapic' option"); +out: + local_irq_restore(flags); } /* |