RDMA/srp: Do not call scsi_done() from srp_abort()

RDMA/srp: Do not call scsi_done() from srp_abort()

After scmd_eh_abort_handler() has called the SCSI LLD eh_abort_handler
callback, it performs one of the following actions:
* Call scsi_queue_insert().
* Call scsi_finish_command().
* Call scsi_eh_scmd_add().
Hence, SCSI abort handlers must not call scsi_done(). Otherwise all
the above actions would trigger a use-after-free. Hence remove the
scsi_done() call from srp_abort(). Keep the srp_free_req() call
before returning SUCCESS because we may not see the command again if
SUCCESS is returned.

Cc: Bob Pearson <rpearsonhpe@gmail.com>
Cc: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Fixes: d8536670916a ("IB/srp: Avoid having aborted requests hang")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230823205727.505681-1-bvanassche@acm.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>