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-rw-r--r--src/print_cpu_usage.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/print_cpu_usage.c b/src/print_cpu_usage.c
index 2549043..faac920 100644
--- a/src/print_cpu_usage.c
+++ b/src/print_cpu_usage.c
@@ -165,8 +165,10 @@ void print_cpu_usage(yajl_gen json_gen, char *buffer, const char *format, const
else if (BEGINS_WITH(walk + 1, "cpu")) {
int number = -1;
sscanf(walk + 1, "cpu%d", &number);
- if (number < 0 || number >= cpu_count) {
- fprintf(stderr, "provided CPU number '%d' above detected number of CPU %d\n", number, cpu_count);
+ if (number == -1) {
+ fprintf(stderr, "i3status: provided CPU number cannot be parsed\n");
+ } else if (number >= cpu_count) {
+ fprintf(stderr, "i3status: provided CPU number '%d' above detected number of CPU %d\n", number, cpu_count);
} else {
int cpu_diff_idle = curr_cpus[number].idle - prev_cpus[number].idle;
int cpu_diff_total = curr_cpus[number].total - prev_cpus[number].total;