tree 2651859707dfe779766552cde0fce41f5eb19103
parent ec54cc081ead14e85736c6543e36ec59be8a7d3d
author Nicholas Bellinger <nab@linux-iscsi.org> 1322642480 -0800
committer Nicholas Bellinger <nab@linux-iscsi.org> 1323862932 +0000

target: Fix possible NULL pointer with __transport_execute_tasks

This patch makes __transport_execute_tasks() use a local *se_dev
reference to prevent direct se_cmd->se_dev access after
transport_cmd_check_stop() -> transport_add_tasks_from_cmd()
has been called, as in the current implementation we can expect
__transport_execute_tasks() may be called from another context
that may have already completed the I/O.

Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>