[PATCH] hw/riscv: Fix test for microchi-icicle-kit

[Sebastian Huber <sebastian.huber@embedded-brains.de>]

Fix this test failure:

  $ QTEST_QEMU_BINARY=./build/qemu-system-riscv64 \
    ./build/tests/qtest/qom-test
  (...)
  # slow test /riscv64/qom/amd-microblaze-v-generic executed in 2.28 \
    secs
  # starting QEMU: exec ./build/qemu-system-riscv64 -qtest
    unix:/tmp/qtest-1361875.sock -qtest-log /dev/null -chardev \
    socket,path=/tmp/qtest-1361875.qmp,id=char0 -mon \
    chardev=char0,mode=control -display none -audio none -machine \
    microchip-icicle-kit -accel qtest
  **
  ERROR:../hw/riscv/boot.c:164:riscv_load_firmware: assertion failed: \
   (firmware_filename != NULL)
  Bail out! ERROR:../hw/riscv/boot.c:164:riscv_load_firmware: \
    assertion failed: (firmware_filename != NULL)

Use an approach similar to riscv_find_and_load_firmware().

Reported-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
---
 hw/riscv/microchip_pfsoc.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/hw/riscv/microchip_pfsoc.c b/hw/riscv/microchip_pfsoc.c
index 9068eed780..616bb63982 100644
--- a/hw/riscv/microchip_pfsoc.c
+++ b/hw/riscv/microchip_pfsoc.c
@@ -609,12 +609,14 @@ static void microchip_icicle_kit_machine_init(MachineState *machine)
     }
 
     /* Load the firmware if necessary */
+    firmware_end_addr = firmware_load_addr;
     if (firmware_name) {
-        const char *filename = riscv_find_firmware(firmware_name, NULL);
-        firmware_end_addr = riscv_load_firmware(filename, &firmware_load_addr,
-                                                NULL);
-    } else {
-        firmware_end_addr = firmware_load_addr;
+        char *filename = riscv_find_firmware(firmware_name, NULL);
+        if (filename) {
+            firmware_end_addr = riscv_load_firmware(filename,
+                                                    &firmware_load_addr, NULL);
+            g_free(filename);
+        }
     }
 
     riscv_boot_info_init(&boot_info, &s->soc.u_cpus);
-- 
2.43.0