[SCSI] qla4xxx: Fail initialization if qla4_8xxx_pci_mem_write_2M fails

Since if fw load is failing, running on incomplete fw load would
be fatal.

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 11 insertions, 6 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index 2d95ef20d07d..18b0ad67a273 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -1127,14 +1127,14 @@ qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
 static int
 qla4_8xxx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
 {
-        int  i;
+        int  i, rval = 0;
         long size = 0;
         long flashaddr, memaddr;
         u64 data;
         u32 high, low;
 
         flashaddr = memaddr = ha->hw.flt_region_bootload;
-        size = (image_start - flashaddr)/8;
+        size = (image_start - flashaddr) / 8;
 
         DEBUG2(printk("scsi%ld: %s: bootldr=0x%lx, fw_image=0x%x\n",
             ha->host_no, __func__, flashaddr, image_start));
@@ -1143,14 +1143,18 @@ qla4_8xxx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
                 if ((qla4_8xxx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
                     (qla4_8xxx_rom_fast_read(ha, flashaddr + 4,
                     (int *)&high))) {
-                        return -1;
+                        rval = -1;
+                        goto exit_load_from_flash;
                 }
                 data = ((u64)high << 32) | low ;
-                qla4_8xxx_pci_mem_write_2M(ha, memaddr, &data, 8);
+                rval = qla4_8xxx_pci_mem_write_2M(ha, memaddr, &data, 8);
+                if (rval)
+                        goto exit_load_from_flash;
+
                 flashaddr += 8;
                 memaddr   += 8;
 
-                if (i%0x1000 == 0)
+                if (i % 0x1000 == 0)
                         msleep(1);
 
         }
@@ -1162,7 +1166,8 @@ qla4_8xxx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
         qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
         read_unlock(&ha->hw_lock);
 
-        return 0;
+exit_load_from_flash:
+        return rval;
 }
 
 static int qla4_8xxx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)