diff options
| author | H. Peter Anvin <hpa@zytor.com> | 2009-05-23 16:42:19 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-05-23 16:42:19 -0700 |
| commit | ee0736627d3347be0be2769fa7b26431f9726c9d (patch) | |
| tree | 203e2204daaec4cf005463fdf2c7bf380d6eef36 /arch/x86/kernel/apic/nmi.c | |
| parent | cf9972a921470b0a2da7906104bcd540b20e33bf (diff) | |
| parent | 0af48f42df15b97080b450d24219dd95db7b929a (diff) | |
| download | blackbird-op-linux-ee0736627d3347be0be2769fa7b26431f9726c9d.tar.gz blackbird-op-linux-ee0736627d3347be0be2769fa7b26431f9726c9d.zip | |
Merge branch 'x86/urgent' into x86/setup
Resolved conflicts:
arch/x86/boot/memory.c
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/kernel/apic/nmi.c')
| -rw-r--r-- | arch/x86/kernel/apic/nmi.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/apic/nmi.c b/arch/x86/kernel/apic/nmi.c index d6bd62407152..ce4fbfa315a1 100644 --- a/arch/x86/kernel/apic/nmi.c +++ b/arch/x86/kernel/apic/nmi.c @@ -138,7 +138,7 @@ int __init check_nmi_watchdog(void) if (!prev_nmi_count) goto error; - alloc_cpumask_var(&backtrace_mask, GFP_KERNEL); + alloc_cpumask_var(&backtrace_mask, GFP_KERNEL|__GFP_ZERO); printk(KERN_INFO "Testing NMI watchdog ... "); #ifdef CONFIG_SMP @@ -414,7 +414,8 @@ nmi_watchdog_tick(struct pt_regs *regs, unsigned reason) touched = 1; } - if (cpumask_test_cpu(cpu, backtrace_mask)) { + /* We can be called before check_nmi_watchdog, hence NULL check. */ + if (backtrace_mask != NULL && cpumask_test_cpu(cpu, backtrace_mask)) { static DEFINE_SPINLOCK(lock); /* Serialise the printks */ spin_lock(&lock); |
