RDMA/nldev: Put the device when dellink fails

nldev_dellink() takes a device reference through
ib_device_get_by_index() and normally hands it over to
ib_unregister_device_and_put(). The error path of the ->dellink
callback returns without releasing it, so the reference is leaked.

Once that happens, any later unregistration of the device blocks
forever, because disable_device() drops its own reference and then
waits for the refcount to drain. No in-tree driver returns an error
from ->dellink today, so the leak is currently latent.

Put the device before returning the error.

Fixes: a60e3f3d6fba ("RDMA/nldev: Add dellink function pointer")
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Link: https://patch.msgid.link/20260903082550.2257-1-lirongqing@baidu.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

0 files changed, 0 insertions, 0 deletions