diff options
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_mbx.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index d8a36c13aeda..7e875f575229 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -292,6 +292,14 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp) if (time_after(jiffies, wait_time)) break; + /* + * Check if it's UNLOADING, cause we cannot poll in + * this case, or else a NULL pointer dereference + * is triggered. + */ + if (unlikely(test_bit(UNLOADING, &base_vha->dpc_flags))) + return QLA_FUNCTION_TIMEOUT; + /* Check for pending interrupts. */ qla2x00_poll(ha->rsp_q_map[0]); |