[SCSI] mpt2sas: Fix failure message displayed during diag reset

The fix is to inhibit the warning message in _scsih_get_sas_address
when the MPI2_IOCSTATUS_CONFIG_INVALID_PAGE ioc status is returned.

Signed-off-by: Nagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index c13efc3..8a9c70f 100644 (file)
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -388,31 +388,34 @@ _scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle,
        Mpi2SasDevicePage0_t sas_device_pg0;
        Mpi2ConfigReply_t mpi_reply;
        u32 ioc_status;
+       *sas_address = 0;
 
        if (handle <= ioc->sas_hba.num_phys) {
                *sas_address = ioc->sas_hba.sas_address;
                return 0;
-       } else
-               *sas_address = 0;
+       }
 
        if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
            MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
-               printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n",
-                   ioc->name, __FILE__, __LINE__, __func__);
+               printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name,
+               __FILE__, __LINE__, __func__);
                return -ENXIO;
        }
 
-       ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
-           MPI2_IOCSTATUS_MASK;
-       if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
-               printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)"
-                   "\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
-                    __FILE__, __LINE__, __func__);
-               return -EIO;
+       ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
+       if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
+               *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
+               return 0;
        }
 
-       *sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
-       return 0;
+       /* we hit this becuase the given parent handle doesn't exist */
+       if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+               return -ENXIO;
+       /* else error case */
+       printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x), "
+           "failure at %s:%d/%s()!\n", ioc->name, handle, ioc_status,
+            __FILE__, __LINE__, __func__);
+       return -EIO;
 }
 
 /**