iommufd/selftest: Fix wrong slot cleared on mock HW queue destroy

mock_hw_queue_init_phys() publishes a new queue in
mock_viommu->hw_queue[index] but never stores the index in
mock_hw_queue->index, while mock_hw_queue_destroy() uses that field to
clear the slot. Since the object is zero-allocated, destroying any queue
always clears hw_queue[0] instead of the queue's own slot.

Record the index before publishing the queue so that destroy clears the
correct slot.

Fixes: 20896914da8a ("iommufd/selftest: Add coverage for IOMMUFD_CMD_HW_QUEUE_ALLOC")
Signed-off-by: Peiyang He <peiyang_he@smail.nju.edu.cn>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/09A8E000F2353E67+20261106122832.88995-1-peiyang_he@smail.nju.edu.cn
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

0 files changed, 0 insertions, 0 deletions