[ATM]: Fix dereference of uninitialized pointer in zatm

[firefly-linux-kernel-4.4.55.git] / arch / i386 / kernel / timers / timer_hpet.c

diff --git a/arch/i386/kernel/timers/timer_hpet.c b/arch/i386/kernel/timers/timer_hpet.c
index 15a7d727bd6f505475c9b6bcab38c31d5768ed92..ef8dac5dd33b103bbc5f8c6f5c9b7ce52bfe4582 100644 (file)
--- a/arch/i386/kernel/timers/timer_hpet.c
+++ b/arch/i386/kernel/timers/timer_hpet.c
@@ -18,7 +18,7 @@
 #include "mach_timer.h"
 #include <asm/hpet.h>
 
-static unsigned long hpet_usec_quotient;       /* convert hpet clks to usec */
+static unsigned long __read_mostly hpet_usec_quotient; /* convert hpet clks to usec */
 static unsigned long tsc_hpet_quotient;                /* convert tsc to hpet clks */
 static unsigned long hpet_last;        /* hpet counter value at last tick*/
 static unsigned long last_tsc_low;     /* lsb 32 bits of Time Stamp Counter */
@@ -158,7 +158,7 @@ static int __init init_hpet(char* override)
                        {       unsigned long eax=0, edx=1000;
                                ASM_DIV64_REG(cpu_khz, edx, tsc_quotient,
                                                eax, edx);
-                               printk("Detected %lu.%03lu MHz processor.\n",
+                               printk("Detected %u.%03u MHz processor.\n",
                                        cpu_khz / 1000, cpu_khz % 1000);
                        }
                        set_cyc2ns_scale(cpu_khz/1000);
@@ -180,7 +180,7 @@ static int __init init_hpet(char* override)
 /************************************************************/
 
 /* tsc timer_opts struct */
-static struct timer_opts timer_hpet = {
+static struct timer_opts timer_hpet __read_mostly = {
        .name =                 "hpet",
        .mark_offset =          mark_offset_hpet,
        .get_offset =           get_offset_hpet,