diff --git a/util/cacheinfo.c b/util/cacheinfo.c
index eebe1ce9c5d2fc1e1a257aa23b97ab87bc9a6e9e..bb1400c60264c00cc094d1aa9644c6afab2ff623 100644
--- a/util/cacheinfo.c
+++ b/util/cacheinfo.c
@@ -90,10 +90,16 @@ static void sys_cache_info(int *isize, int *dsize)
 static void sys_cache_info(int *isize, int *dsize)
 {
 # ifdef _SC_LEVEL1_ICACHE_LINESIZE
-    *isize = sysconf(_SC_LEVEL1_ICACHE_LINESIZE);
+    int tmp_isize = (int) sysconf(_SC_LEVEL1_ICACHE_LINESIZE);
+    if (tmp_isize > 0) {
+        *isize = tmp_isize;
+    }
 # endif
 # ifdef _SC_LEVEL1_DCACHE_LINESIZE
-    *dsize = sysconf(_SC_LEVEL1_DCACHE_LINESIZE);
+    int tmp_dsize = (int) sysconf(_SC_LEVEL1_DCACHE_LINESIZE);
+    if (tmp_dsize > 0) {
+        *dsize = tmp_dsize;
+    }
 # endif
 }
 #endif /* sys_cache_info */