[PATCH 0/1] MR8088: winebus: Fix detection of devices with no axis.

[Oleg Makarenko (＠JacKeTUs)]

Currently Wine does not create device with no axis. They are detected by SDL.
Such devices do exist, for example, shifters, button-boxes for various simulation games.

Bug was introduced in https://gitlab.winehq.org/wine/wine/-/merge_requests/181, it doesn't enter in cycle if `axis_count` is 0. Changed cycle from `for` to `do while`, allowing device creation run at least once.

[PATCH 1/1] winebus: Fix detection of devices with no axes.

[Makarenko Oleg]

From: Makarenko Oleg

---
 dlls/winebus.sys/bus_sdl.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dlls/winebus.sys/bus_sdl.c b/dlls/winebus.sys/bus_sdl.c
index eee95e213c0..5cec049a845 100644
--- a/dlls/winebus.sys/bus_sdl.c
+++ b/dlls/winebus.sys/bus_sdl.c
@@ -999,7 +999,8 @@ static void sdl_add_device(unsigned int index)
         desc.is_gamepad = (axis_count == 6  && button_count >= 14);
     }

-    for (axis_offset = 0; axis_offset < axis_count; axis_offset += (options.split_controllers ? 6 : axis_count))
+    axis_offset = 0;
+    do
     {
         NTSTATUS status;

@@ -1026,7 +1027,9 @@ static void sdl_add_device(unsigned int index)
         }

bus_event_queue_device_created(&event_queue, &impl->unix_device, &desc);
+        axis_offset += (options.split_controllers ? 6 : axis_count);
     }
+    while (axis_offset < axis_count);
 }

static void process_device_event(SDL_Event *event)