rapidio: clear mport->net when rio_add_net() fails

rio_alloc_net() stores the newly allocated rio_net in mport->net before
rio_scan_alloc_net() registers the device.

If rio_add_net() fails, rio_scan_alloc_net() drops the device reference
with put_device(), which releases the rio_net through the device release
callback.  However, mport->net is left pointing at the freed object.

A later mport unregister path can then dereference the dangling mport->net
pointer and may try to free the same rio_net again.

Clear mport->net in the rio_add_net() failure path, matching the cleanup
done for the destID table allocation failure path.

Link: https://lore.kernel.org/20260708070628.721010-1-lgs201920130244@gmail.com
Fixes: e842f9a1edf3 ("rapidio: add check for rio_add_net() in rio_scan_alloc_net()")
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Cc: Alexandre Bounine <alex.bou9@gmail.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Yang yingliang <yangyingliang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

0 files changed, 0 insertions, 0 deletions