Make sure to correctly free memory on errors

factorial_examples/factorial.c

@@ -26,12 +26,13 @@ int main(void) {
 	int err = getline(&lineptr, &bufsize, stdin);
 	if(err == -1) {
 		fputs("Error reading line from user input\n", stderr);
+		free(lineptr);
 		return 1;
 	}
 
 	uintmax_t user_input = abs(atoi(lineptr));
+	free(lineptr);
 	printf("\nRecursive factorial for number: %ju\n", factorial(user_input));
 	printf("Iterative factorial for number: %ju\n", factorial_iter(user_input));
-	free(lineptr);
 	return 0;
 }