[PATCH-for-9.0] iothread: Remove unused Error** argument in aio_context_set_aio_params

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

aio_context_set_aio_params() doesn't use its undocumented
Error** argument. Remove it to simplify.

Note this removes a use of "unchecked Error**" in
iothread_set_aio_context_params().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 include/block/aio.h | 3 +--
 iothread.c          | 3 +--
 util/aio-posix.c    | 3 +--
 util/aio-win32.c    | 3 +--
 util/main-loop.c    | 5 +----
 5 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/include/block/aio.h b/include/block/aio.h
index f08b358077..7c28239d8d 100644
--- a/include/block/aio.h
+++ b/include/block/aio.h
@@ -716,8 +716,7 @@ void aio_context_set_poll_params(AioContext *ctx, int64_t max_ns,
  * @max_batch: maximum number of requests in a batch, 0 means that the
  *             engine will use its default
  */
-void aio_context_set_aio_params(AioContext *ctx, int64_t max_batch,
-                                Error **errp);
+void aio_context_set_aio_params(AioContext *ctx, int64_t max_batch);
 
 /**
  * aio_context_set_thread_pool_params:
diff --git a/iothread.c b/iothread.c
index b753286414..6c1fc8c856 100644
--- a/iothread.c
+++ b/iothread.c
@@ -170,8 +170,7 @@ static void iothread_set_aio_context_params(EventLoopBase *base, Error **errp)
     }
 
     aio_context_set_aio_params(iothread->ctx,
-                               iothread->parent_obj.aio_max_batch,
-                               errp);
+                               iothread->parent_obj.aio_max_batch);
 
     aio_context_set_thread_pool_params(iothread->ctx, base->thread_pool_min,
                                        base->thread_pool_max, errp);
diff --git a/util/aio-posix.c b/util/aio-posix.c
index 7f2c99729d..266c9dd35f 100644
--- a/util/aio-posix.c
+++ b/util/aio-posix.c
@@ -777,8 +777,7 @@ void aio_context_set_poll_params(AioContext *ctx, int64_t max_ns,
     aio_notify(ctx);
 }
 
-void aio_context_set_aio_params(AioContext *ctx, int64_t max_batch,
-                                Error **errp)
+void aio_context_set_aio_params(AioContext *ctx, int64_t max_batch)
 {
     /*
      * No thread synchronization here, it doesn't matter if an incorrect value
diff --git a/util/aio-win32.c b/util/aio-win32.c
index 948ef47a4d..d144f9391f 100644
--- a/util/aio-win32.c
+++ b/util/aio-win32.c
@@ -438,7 +438,6 @@ void aio_context_set_poll_params(AioContext *ctx, int64_t max_ns,
     }
 }
 
-void aio_context_set_aio_params(AioContext *ctx, int64_t max_batch,
-                                Error **errp)
+void aio_context_set_aio_params(AioContext *ctx, int64_t max_batch)
 {
 }
diff --git a/util/main-loop.c b/util/main-loop.c
index 797b640c41..63b4cda84a 100644
--- a/util/main-loop.c
+++ b/util/main-loop.c
@@ -192,10 +192,7 @@ static void main_loop_update_params(EventLoopBase *base, Error **errp)
         return;
     }
 
-    aio_context_set_aio_params(qemu_aio_context, base->aio_max_batch, errp);
-    if (*errp) {
-        return;
-    }
+    aio_context_set_aio_params(qemu_aio_context, base->aio_max_batch);
 
     aio_context_set_thread_pool_params(qemu_aio_context, base->thread_pool_min,
                                        base->thread_pool_max, errp);
-- 
2.41.0