linux-stable/drivers/infiniband
Bart Van Assche 51093254bf IB/srpt: Simplify srpt_handle_tsk_mgmt()
Let the target core check task existence instead of the SRP target
driver. Additionally, let the target core check the validity of the
task management request instead of the ib_srpt driver.

This patch fixes the following kernel crash:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000001
IP: [<ffffffffa0565f37>] srpt_handle_new_iu+0x6d7/0x790 [ib_srpt]
Oops: 0002 [#1] SMP
Call Trace:
 [<ffffffffa05660ce>] srpt_process_completion+0xde/0x570 [ib_srpt]
 [<ffffffffa056669f>] srpt_compl_thread+0x13f/0x160 [ib_srpt]
 [<ffffffff8109726f>] kthread+0xcf/0xe0
 [<ffffffff81613cfc>] ret_from_fork+0x7c/0xb0

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Fixes: 3e4f574857 ("ib_srpt: Convert TMR path to target_submit_tmr")
Tested-by: Alex Estrin <alex.estrin@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Nicholas Bellinger <nab@linux-iscsi.org>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-02-29 17:12:34 -05:00
..
core IB/core: Fix reading capability mask of the port info class 2016-02-11 11:05:56 -05:00
hw Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-02-22 12:18:07 -08:00
ulp IB/srpt: Simplify srpt_handle_tsk_mgmt() 2016-02-29 17:12:34 -05:00
Kconfig IB/cma: Add configfs for rdma_cm 2015-12-23 10:39:52 -05:00
Makefile