x86/nmi: Fix use of unallocated cpumask_var_t

[cascardo/linux.git] / arch / x86 / kernel / apic / hw_nmi.c

diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c
index c95c3e9..6873ab9 100644 (file)
--- a/arch/x86/kernel/apic/hw_nmi.c
+++ b/arch/x86/kernel/apic/hw_nmi.c
@@ -30,7 +30,7 @@ u64 hw_nmi_get_sample_period(int watchdog_thresh)
 #ifdef arch_trigger_all_cpu_backtrace
 /* For reliability, we're prepared to waste bits here. */
 static DECLARE_BITMAP(backtrace_mask, NR_CPUS) __read_mostly;
-static cpumask_var_t printtrace_mask;
+static cpumask_t printtrace_mask;
 
 #define NMI_BUF_SIZE           4096
 
@@ -73,7 +73,7 @@ void arch_trigger_all_cpu_backtrace(bool include_self)
        if (!include_self)
                cpumask_clear_cpu(this_cpu, to_cpumask(backtrace_mask));
 
-       cpumask_copy(printtrace_mask, to_cpumask(backtrace_mask));
+       cpumask_copy(&printtrace_mask, to_cpumask(backtrace_mask));
        /*
         * Set up per_cpu seq_buf buffers that the NMIs running on the other
         * CPUs will write to.
@@ -101,7 +101,7 @@ void arch_trigger_all_cpu_backtrace(bool include_self)
         * Now that all the NMIs have triggered, we can dump out their
         * back traces safely to the console.
         */
-       for_each_cpu(cpu, printtrace_mask) {
+       for_each_cpu(cpu, &printtrace_mask) {
                int last_i = 0;
 
                s = &per_cpu(nmi_print_seq, cpu);