diff options
| author | Roland Dreier <roland@purestorage.com> | 2012-06-04 23:24:51 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-22 11:37:17 -0700 |
| commit | f5f062e1be5fdafaa68c4dd97a2d64ef78458b37 (patch) | |
| tree | 27daceb9af40e206bae076d71522ba9524e3c09a /drivers/target | |
| parent | 75862961e9b445a9bfce25b9da70ef930a857762 (diff) | |
target: Return error to initiator if SET TARGET PORT GROUPS emulation fails
commit 59e4f541baf728dbb426949bfa9f6862387ffd0e upstream.
The error paths in target_emulate_set_target_port_groups() are all
essentially "rc = -EINVAL; goto out;" but the code at "out:" ignores
rc and always returns success. This means that even if eg explicit
ALUA is turned off, the initiator will always see a good SCSI status
for SET TARGET PORT GROUPS.
Fix this by returning rc as is intended. It appears this bug was
added by the following patch:
commit 05d1c7c0d0db4cc25548d9aadebb416888a82327
Author: Andy Grover <agrover@redhat.com>
Date: Wed Jul 20 19:13:28 2011 +0000
target: Make all control CDBs scatter-gather
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
[bwh: Backported to 3.2: we have transport_complete_task()
and not target_complete_cmd()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_alua.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index c7746a3339d..f30e124874b 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -351,9 +351,11 @@ int target_emulate_set_target_port_groups(struct se_task *task) out: transport_kunmap_data_sg(cmd); - task->task_scsi_status = GOOD; - transport_complete_task(task, 1); - return 0; + if (!rc) { + task->task_scsi_status = GOOD; + transport_complete_task(task, 1); + } + return rc; } static inline int core_alua_state_nonoptimized( |