do_floppy_init() probes each FDC with user_reset_fdc(), which queues a redo_fd_request() work item on floppy_wq that may still be pending when the probe finishes. When no controller is found, the error path calls floppy_release_irq_and_dma() to free the IRQ and DMA channel, and only later destroys the workqueue. destroy_workqueue() drains the queued work last, so it can run after the IRQ and DMA are already gone: floppy0: no floppy controllers found work still pending The flush used to be here. Commit 070ad7e793dc ("floppy: convert to delayed work and single-thread wq") renamed the label out_flush_work to out_release_dma and dropped it. Restore it so the work drains before the IRQ and DMA are released, as floppy_module_exit() already does. Fixes: 070ad7e793dc ("floppy: convert to delayed work and single-thread wq") Assisted-by: Claude:claude-opus-4-8 Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com> Link: https://patch.msgid.link/20260722034435.13432-1-kmehltretter@gmail.com Signed-off-by: Denis Efremov (Oracle) <efremov@linux.com>