qom: Remove unused errp parameter from can_be_deleted()

The errp argument is ignored by all implementations of the
method, and user_creatable_del() would break if any
implementation set an error (because it calls error_setg(errp) if
the function returns false).  Remove the unused parameter.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170829220337.23427-1-ehabkost@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

diff --git a/backends/cryptodev.c b/backends/cryptodev.c
index 1764c179fe8e07b02f530666fa8d60e2250212fb..67edfa53289bc8966c3aadf11169174563973051 100644 (file)
--- a/backends/cryptodev.c
+++ b/backends/cryptodev.c
@@ -215,7 +215,7 @@ bool cryptodev_backend_is_ready(CryptoDevBackend *backend)
 }
 
 static bool
-cryptodev_backend_can_be_deleted(UserCreatable *uc, Error **errp)
+cryptodev_backend_can_be_deleted(UserCreatable *uc)
 {
     return !cryptodev_backend_is_used(CRYPTODEV_BACKEND(uc));
 }

diff --git a/backends/hostmem.c b/backends/hostmem.c
index 4606b73849ba77358e6ab280265387842de0b2cb..34550b906749f693801c437e0a732aaee8fb4bef 100644 (file)
--- a/backends/hostmem.c
+++ b/backends/hostmem.c
@@ -342,7 +342,7 @@ out:
 }
 
 static bool
-host_memory_backend_can_be_deleted(UserCreatable *uc, Error **errp)
+host_memory_backend_can_be_deleted(UserCreatable *uc)
 {
     if (host_memory_backend_is_mapped(MEMORY_BACKEND(uc))) {
         return false;

diff --git a/include/qom/object_interfaces.h b/include/qom/object_interfaces.h
index fdd7603c8431b3468bbcd63a067663f050d196dc..d63c1c28f8569302f4198206d5ccfe0467b18d5d 100644 (file)
--- a/include/qom/object_interfaces.h
+++ b/include/qom/object_interfaces.h
@@ -51,7 +51,7 @@ typedef struct UserCreatableClass {
 
     /* <public> */
     void (*complete)(UserCreatable *uc, Error **errp);
-    bool (*can_be_deleted)(UserCreatable *uc, Error **errp);
+    bool (*can_be_deleted)(UserCreatable *uc);
 } UserCreatableClass;
 
 /**
@@ -68,12 +68,11 @@ void user_creatable_complete(Object *obj, Error **errp);
 /**
  * user_creatable_can_be_deleted:
  * @uc: the object whose can_be_deleted() method is called if implemented
- * @errp: if an error occurs, a pointer to an area to store the error
  *
  * Wrapper to call can_be_deleted() method if one of types it's inherited
  * from implements USER_CREATABLE interface.
  */
-bool user_creatable_can_be_deleted(UserCreatable *uc, Error **errp);
+bool user_creatable_can_be_deleted(UserCreatable *uc);
 
 /**
  * user_creatable_add_type:

diff --git a/qom/object_interfaces.c b/qom/object_interfaces.c
index ff27e0669e17fbbf8b75640897bcd937d29717b0..3bb8959f09cf28c612759b8b2f350979f8629f1e 100644 (file)
--- a/qom/object_interfaces.c
+++ b/qom/object_interfaces.c
@@ -23,13 +23,13 @@ void user_creatable_complete(Object *obj, Error **errp)
     }
 }
 
-bool user_creatable_can_be_deleted(UserCreatable *uc, Error **errp)
+bool user_creatable_can_be_deleted(UserCreatable *uc)
 {
 
     UserCreatableClass *ucc = USER_CREATABLE_GET_CLASS(uc);
 
     if (ucc->can_be_deleted) {
-        return ucc->can_be_deleted(uc, errp);
+        return ucc->can_be_deleted(uc);
     } else {
         return true;
     }
@@ -178,7 +178,7 @@ void user_creatable_del(const char *id, Error **errp)
         return;
     }
 
-    if (!user_creatable_can_be_deleted(USER_CREATABLE(obj), errp)) {
+    if (!user_creatable_can_be_deleted(USER_CREATABLE(obj))) {
         error_setg(errp, "object '%s' is in use, can not be deleted", id);
         return;
     }