thr_id can be successful as -1 which is wrong and could lead to a crash.
diff --git a/main.c b/main.c
index 8f42f0a..3833326 100644
--- a/main.c
+++ b/main.c
@@ -537,7 +537,7 @@ static inline void print_status(int thr_id)
printw("Totals: %s", statusline);
clrtoeol();
- if (thr_id && thr_id < gpu_threads) {
+ if (thr_id >= 0 && thr_id < gpu_threads) {
int gpu = gpu_from_thr_id(thr_id);
struct cgpu_info *cgpu = &gpus[gpu];
@@ -547,7 +547,7 @@ static inline void print_status(int thr_id)
cgpu->getworks, cgpu->accepted, cgpu->rejected, cgpu->hw_errors,
cgpu->efficiency, cgpu->utility);
clrtoeol();
- } else if (thr_id && thr_id >= gpu_threads) {
+ } else if (thr_id >= gpu_threads) {
int cpu = cpu_from_thr_id(thr_id);
struct cgpu_info *cgpu = &cpus[cpu];