avoid useless assignment if not needed

[psensor.git] / src / lib / cpu.c

diff --git a/src/lib/cpu.c b/src/lib/cpu.c
index df6b963..9fb389b 100644 (file)
--- a/src/lib/cpu.c
+++ b/src/lib/cpu.c
@@ -62,9 +62,9 @@ cpu_psensor_list_add(struct psensor **sensors, int measures_len)
 static double get_usage()
 {
        glibtop_cpu cpu;
-       unsigned long int used = 0;
+       unsigned long int used;
        unsigned long int dt;
-       double cpu_rate = UNKNOWN_DBL_VALUE;
+       double cpu_rate;
 
        glibtop_get_cpu(&cpu);
 
@@ -74,6 +74,8 @@ static double get_usage()
 
        if (dt)
                cpu_rate = 100 * (used - last_used) / dt;
+       else
+               cpu_rate = UNKNOWN_DBL_VALUE;
 
        last_used = used;
        last_total = cpu.total;