apps/speed.c: add verifying if fdopen returns NULL
@@ -3508,7 +3508,11 @@ static int do_multi(int multi, int size_num)
char buf[1024];
char *p;
- f = fdopen(fds[n], "r");
+ if ((f = fdopen(fds[n], "r")) == NULL) {
+ BIO_printf(bio_err, "fdopen failure with 0x%x\n",
+ errno);
+ return 1;
+ }
while (fgets(buf, sizeof(buf), f)) {
p = strchr(buf, '\n');
if (p)
