1 files changed, 4 insertions, 2 deletions
diff --git a/lib/lib.c b/lib/lib.c
index 95ba1216..ad84dff5 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -422,8 +422,10 @@ long atolx(char *c)
 	char *suffixes="kmgtpe", *end;
 	long val = strtol(c, &c, 0);
 
-	end = strchr(suffixes, tolower(*c));
-	if (end) val *= 1024<<((end-suffixes)*10);
+	if (*c) {
+		end = strchr(suffixes, tolower(*c));
+		if (end) val *= 1024L<<((end-suffixes)*10);
+	}
 	return val;
 }