Hi, this is a series of fixes for UDL driver to address the leftover URBs at suspend/resume. It begins with the simplification of FIFO control code with the standard wait queue, followed by the handling of pending URBs, and replace BUG_ON() with WARN_ON() as a cleanup. Takashi === Takashi Iwai (4): drm/udl: Replace semaphore with a simple wait queue drm/udl: Sync pending URBs at suspend / disconnect drm/udl: Kill pending URBs at suspend and disconnect drm/udl: Replace BUG_ON() with WARN_ON() drivers/gpu/drm/udl/udl_drv.h | 14 +++- drivers/gpu/drm/udl/udl_main.c | 125 ++++++++++++++--------------- drivers/gpu/drm/udl/udl_modeset.c | 4 + drivers/gpu/drm/udl/udl_transfer.c | 3 +- 4 files changed, 79 insertions(+), 67 deletions(-) -- 2.35.3