[SCSI] Add scsi_add_host() failure handling for nsp32

Add scsi_add_host() failure handling for nsp32
and silence warning.
  drivers/scsi/nsp32.c:2888: warning: ignoring return value of 'Scsi_add_host', declared with attribute warn_unused_result

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: GOTO Masanori <gotom@sanori.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c
index 5c55e152e718..159fd5d8f98d 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -2886,12 +2886,19 @@ static int nsp32_detect(struct scsi_host_template *sht)
         }
 
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,73))
-        scsi_add_host (host, &PCIDEV->dev);
+        ret = scsi_add_host(host, &PCIDEV->dev);
+        if (ret) {
+                nsp32_msg(KERN_ERR, "failed to add scsi host");
+                goto free_region;
+        }
         scsi_scan_host(host);
 #endif
         pci_set_drvdata(PCIDEV, host);
         return DETECT_OK;
 
+ free_region:
+        release_region(host->io_port, host->n_io_port);
+
  free_irq:
         free_irq(host->irq, data);