[SCSI] zfcp: Pass return code from fc_block_scsi_eh to scsi eh

The return code FAST_IO_FAIL from fc_block_scsi_eh indicates that the
pending I/O requests have been terminated as a result of the
fast_io_fail_tmo. Pass this return code back to the scsi eh to stop
the scsi eh in this case.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 174b6d5..d13eb9a 100644 (file)
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -175,7 +175,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
        struct zfcp_fsf_req *old_req, *abrt_req;
        unsigned long flags;
        unsigned long old_reqid = (unsigned long) scpnt->host_scribble;
-       int retval = SUCCESS;
+       int retval = SUCCESS, ret;
        int retry = 3;
        char *dbf_tag;
 
@@ -200,7 +200,9 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
                        break;
 
                zfcp_erp_wait(adapter);
-               fc_block_scsi_eh(scpnt);
+               ret = fc_block_scsi_eh(scpnt);
+               if (ret)
+                       return ret;
                if (!(atomic_read(&adapter->status) &
                      ZFCP_STATUS_COMMON_RUNNING)) {
                        zfcp_dbf_scsi_abort("nres", adapter->dbf, scpnt, NULL,
@@ -231,7 +233,7 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
        struct zfcp_unit *unit = scpnt->device->hostdata;
        struct zfcp_adapter *adapter = unit->port->adapter;
        struct zfcp_fsf_req *fsf_req = NULL;
-       int retval = SUCCESS;
+       int retval = SUCCESS, ret;
        int retry = 3;
 
        while (retry--) {
@@ -240,7 +242,10 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags)
                        break;
 
                zfcp_erp_wait(adapter);
-               fc_block_scsi_eh(scpnt);
+               ret = fc_block_scsi_eh(scpnt);
+               if (ret)
+                       return ret;
+
                if (!(atomic_read(&adapter->status) &
                      ZFCP_STATUS_COMMON_RUNNING)) {
                        zfcp_dbf_scsi_devreset("nres", tm_flags, unit, scpnt);
@@ -276,10 +281,13 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
 {
        struct zfcp_unit *unit = scpnt->device->hostdata;
        struct zfcp_adapter *adapter = unit->port->adapter;
+       int ret;
 
        zfcp_erp_adapter_reopen(adapter, 0, "schrh_1", scpnt);
        zfcp_erp_wait(adapter);
-       fc_block_scsi_eh(scpnt);
+       ret = fc_block_scsi_eh(scpnt);
+       if (ret)
+               return ret;
 
        return SUCCESS;
 }