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qla2xxx: fix crash due to task mgmt cmd type 

tcm_qla2xxx_get_task_tag incorrectly assume command is
qla_tgt_cmd.  Add check to see if it's a scsi cmd or
task mgmt command.

Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Himanshu Madhani 2014-09-25 06:14:50 -04:00 committed by Christoph Hellwig
parent d29fb7360e
commit dd9c4eff77
1 changed files with 7 additions and 2 deletions
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9
drivers/scsi/qla2xxx/tcm_qla2xxx.c
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@ -515,8 +515,13 @@ static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl)
static u32 tcm_qla2xxx_get_task_tag(struct se_cmd *se_cmd)
{
struct qla_tgt_cmd *cmd = container_of(se_cmd,
struct qla_tgt_cmd, se_cmd);
struct qla_tgt_cmd *cmd;
/* check for task mgmt cmd */
if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
return 0xffffffff;
cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
return cmd->tag;
}