diff options
| author | Bart Van Assche <bvanassche@acm.org> | 2019-04-17 14:44:30 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-04-29 17:24:50 -0400 |
| commit | b1e261d4a4b71d67b62f6649c5496810c28e7ac1 (patch) | |
| tree | ddc925d149f471574a1272c92543a14936e8ce25 /drivers/scsi/qla2xxx/tcm_qla2xxx.c | |
| parent | aefed3e5548f28e5fecafda6604fcbc65484dbaa (diff) | |
| download | lwn-b1e261d4a4b71d67b62f6649c5496810c28e7ac1.tar.gz lwn-b1e261d4a4b71d67b62f6649c5496810c28e7ac1.zip | |
scsi: qla2xxx: Complain if a command is released that is owned by the firmware
The previous patch guarantees that a command is only released after the
firmware has finished processing it. Hence complain if a command is
released that is owned by the firmware.
Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/tcm_qla2xxx.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/tcm_qla2xxx.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index 9f0642b19c0e..86db07309302 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -320,7 +320,6 @@ static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd) static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) { struct qla_tgt_cmd *cmd; - unsigned long flags; if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) { struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd, @@ -330,14 +329,10 @@ static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd) } cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); - spin_lock_irqsave(&cmd->cmd_lock, flags); - if (cmd->cmd_sent_to_fw) { - cmd->released = 1; - spin_unlock_irqrestore(&cmd->cmd_lock, flags); - } else { - spin_unlock_irqrestore(&cmd->cmd_lock, flags); - qlt_free_cmd(cmd); - } + if (WARN_ON(cmd->cmd_sent_to_fw)) + return; + + qlt_free_cmd(cmd); } static void tcm_qla2xxx_release_session(struct kref *kref) |