backends: Have HostMemoryBackendClass::alloc() handler return a boolean

Following the example documented since commit e3fe3988d7 ("error:
Document Error API usage rules"), have HostMemoryBackendClass::alloc
return a boolean indicating whether an error is set or not.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Message-Id: <20231120213301.24349-17-philmd@linaro.org>

1 files changed, 2 insertions, 3 deletions

diff --git a/backends/hostmem.c b/backends/hostmem.c
index 1723c19165..3f8eb936d7 100644
--- a/backends/hostmem.c
+++ b/backends/hostmem.c
@@ -331,9 +331,8 @@ host_memory_backend_memory_complete(UserCreatable *uc, Error **errp)
     if (!bc->alloc) {
         return;
     }
-    bc->alloc(backend, &local_err);
-    if (local_err) {
-        goto out;
+    if (!bc->alloc(backend, errp)) {
+        return;
     }
 
     ptr = memory_region_get_ram_ptr(&backend->mr);