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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-01-29 13:33:05 -0800 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-01-29 14:22:01 -0800 |
| commit | 49df9fc9b9fd41e5749c5a9be2d2076328f75fc7 (patch) | |
| tree | e10c0fed21b6d37e6fbe536684f2af36ebec72fa /drivers/target | |
| parent | 64fe4f4f181cc2fe97d4176bf6ee6e3725ae33ec (diff) | |
| download | linux-49df9fc9b9fd41e5749c5a9be2d2076328f75fc7.tar.gz linux-49df9fc9b9fd41e5749c5a9be2d2076328f75fc7.tar.bz2 linux-49df9fc9b9fd41e5749c5a9be2d2076328f75fc7.zip | |
target: Fix zero-length INQUIRY additional sense code regression
This patch fixes a minor regression introduced in v3.8-rc1 code
where a zero-length INQUIRY was no longer returning the correct
INVALID FIELD IN CDB additional sense code.
This regression was introduced with the following commit:
commit de103c93aff0bed0ae984274e5dc8b95899badab
Author: Christoph Hellwig <hch@lst.de>
Date: Tue Nov 6 12:24:09 2012 -0800
target: pass sense_reason as a return value
and this patch has been tested with the following zero-length CDB:
sg_raw /dev/sdd 12 00 83 00 00 00
SCSI Status: Check Condition
Sense Information:
Fixed format, current; Sense key: Illegal Request
Additional sense: Invalid field in cdb
Cc: Christoph Hellwig <hch@lst.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
| -rw-r--r-- | drivers/target/target_core_spc.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 84f9e96e8ace..f8857d4eac66 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -641,11 +641,10 @@ spc_emulate_inquiry(struct se_cmd *cmd) out: rbuf = transport_kmap_data_sg(cmd); - if (!rbuf) - return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; - - memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length)); - transport_kunmap_data_sg(cmd); + if (rbuf) { + memcpy(rbuf, buf, min_t(u32, sizeof(buf), cmd->data_length)); + transport_kunmap_data_sg(cmd); + } if (!ret) target_complete_cmd(cmd, GOOD); |