aspeed/scu: Use qemu_guest_getrandom_nofail

The random number is intended for use by the guest.  As such, we should
honor the -seed argument for reproducibility.  Use the *_nofail routine
instead of rolling our own error handling locally.

Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c
index c8217740efc1d2d7c59f615c8e3fc5eba17f5a03..ab1e18ed4b0fcbb942c0dd4fc6287b72fd9c8964 100644 (file)
--- a/hw/misc/aspeed_scu.c
+++ b/hw/misc/aspeed_scu.c
@@ -16,7 +16,7 @@
 #include "qapi/visitor.h"
 #include "qemu/bitops.h"
 #include "qemu/log.h"
-#include "crypto/random.h"
+#include "qemu/guest-random.h"
 #include "trace.h"
 
 #define TO_REG(offset) ((offset) >> 2)
@@ -157,14 +157,8 @@ static const uint32_t ast2500_a1_resets[ASPEED_SCU_NR_REGS] = {
 
 static uint32_t aspeed_scu_get_random(void)
 {
-    Error *err = NULL;
     uint32_t num;
-
-    if (qcrypto_random_bytes((uint8_t *)&num, sizeof(num), &err)) {
-        error_report_err(err);
-        exit(1);
-    }
-
+    qemu_guest_getrandom_nofail(&num, sizeof(num));
     return num;
 }