1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index b6e5cbfb09f8..204e2e987e90 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -819,7 +819,7 @@ static void smi_timeout(unsigned long data)
         enum si_sm_result smi_result;
         unsigned long     flags;
         unsigned long     jiffies_now;
-        unsigned long     time_diff;
+        long              time_diff;
 #ifdef DEBUG_TIMING
         struct timeval    t;
 #endif
@@ -835,7 +835,7 @@ static void smi_timeout(unsigned long data)
         printk("**Timer: %d.%9.9d\n", t.tv_sec, t.tv_usec);
 #endif
         jiffies_now = jiffies;
-        time_diff = ((jiffies_now - smi_info->last_timeout_jiffies)
+        time_diff = (((long)jiffies_now - (long)smi_info->last_timeout_jiffies)
                      * SI_USEC_PER_JIFFY);
         smi_result = smi_event_handler(smi_info, time_diff);