Revert "scsi: qla2xxx: Fix crash on qla2x00_mailbox_command"

FCoE adapter initialization failed for ISP8021 with the following patch
applied. In addition, reproduction of the issue the patch originally tried
to address has been unsuccessful.

This reverts commit 880ae6b1bd79dd359bd590eca2795d035d980df9.

Link: https://lore.kernel.org/r/20200806111014.28434-11-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 77e1e24125cab896d514e736f38ddb14f15115b2..226f1428d3e52f24efc669f5a5b6f5b1165e5eb7 100644 (file)
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -334,14 +334,6 @@ 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]);