Alexandre Julliard : server: Allow device manager ioctls to run asynchronously.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 0157f7688813e9f4d04855f97c3053e104a31ed0
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=0157f7688813e9f4d04855f97c3053e104a31ed0

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Wed Mar 11 22:44:51 2015 +0900

server: Allow device manager ioctls to run asynchronously.

---

 server/device.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/server/device.c b/server/device.c
index df65aa9..c5e3107 100644
--- a/server/device.c
+++ b/server/device.c
@@ -313,7 +313,7 @@ static obj_handle_t device_ioctl( struct fd *fd, ioctl_code_t code, const async_
 {
     struct device *device = get_fd_user( fd );
     struct ioctl_call *ioctl;
-    obj_handle_t handle;
+    obj_handle_t handle = 0;
 
     if (!device->manager)  /* it has been deleted */
     {
@@ -327,7 +327,7 @@ static obj_handle_t device_ioctl( struct fd *fd, ioctl_code_t code, const async_
     ioctl->thread   = (struct thread *)grab_object( current );
     ioctl->user_arg = async_data->arg;
 
-    if (!(handle = alloc_handle( current->process, ioctl, SYNCHRONIZE, 0 )))
+    if (blocking && !(handle = alloc_handle( current->process, ioctl, SYNCHRONIZE, 0 )))
     {
         release_object( ioctl );
         return 0;
@@ -335,7 +335,7 @@ static obj_handle_t device_ioctl( struct fd *fd, ioctl_code_t code, const async_
 
     if (!(ioctl->async = fd_queue_async( device->fd, async_data, ASYNC_TYPE_WAIT )))
     {
-        close_handle( current->process, handle );
+        if (handle) close_handle( current->process, handle );
         release_object( ioctl );
         return 0;
     }