[PULL 12/12] accel: abort if we fail to load the accelerator plugin

[Paolo Bonzini <pbonzini@redhat.com>]

From: Claudio Fontana <cfontana@suse.de>

if QEMU is configured with modules enabled, it is possible that the
load of an accelerator module will fail.
Exit in this case, relying on module_object_class_by_name to report
the specific load error if any.

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

[claudio: changed abort() to exit(1)]
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20220929093035.4231-6-cfontana@suse.de>

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 accel/accel-softmmu.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/accel/accel-softmmu.c b/accel/accel-softmmu.c
index 67276e4f5222..f9cdafb148ac 100644
--- a/accel/accel-softmmu.c
+++ b/accel/accel-softmmu.c
@@ -66,6 +66,7 @@ void accel_init_ops_interfaces(AccelClass *ac)
 {
     const char *ac_name;
     char *ops_name;
+    ObjectClass *oc;
     AccelOpsClass *ops;
 
     ac_name = object_class_get_name(OBJECT_CLASS(ac));
@@ -73,8 +74,13 @@ void accel_init_ops_interfaces(AccelClass *ac)
 
     ops_name = g_strdup_printf("%s" ACCEL_OPS_SUFFIX, ac_name);
     ops = ACCEL_OPS_CLASS(module_object_class_by_name(ops_name));
+    oc = module_object_class_by_name(ops_name);
+    if (!oc) {
+        error_report("fatal: could not load module for type '%s'", ops_name);
+        exit(1);
+    }
     g_free(ops_name);
-
+    ops = ACCEL_OPS_CLASS(oc);
     /*
      * all accelerators need to define ops, providing at least a mandatory
      * non-NULL create_vcpu_thread operation.
-- 
2.38.1