[PATCH -mm] IPS SCSI driver: Check return of scsi_add_host()

[Satyam Sharma]

drivers/scsi/ips.c: In function ‘ips_register_scsi’:
drivers/scsi/ips.c:6869:
warning: ignoring return value of ‘scsi_add_host’, declared with attribute 
warn_unused_result

scsi_add_host() is __must_check, so let's check it's return and cleanup
appropriately on errors.

Signed-off-by: Satyam Sharma <[EMAIL PROTECTED]>

---

 drivers/scsi/ips.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- linux-2.6.23-rc4-mm1/drivers/scsi/ips.c~fix 2007-09-02 20:21:27.000000000 
+0530
+++ linux-2.6.23-rc4-mm1/drivers/scsi/ips.c     2007-09-02 20:25:58.000000000 
+0530
@@ -6866,7 +6866,12 @@ ips_register_scsi(int index)
        sh->max_channel = ha->nbus - 1;
        sh->can_queue = ha->max_cmds - 1;
 
-       scsi_add_host(sh, NULL);
+       if (scsi_add_host(sh, NULL)) {
+               IPS_PRINTK(KERN_WARNING, ha->pcidev, "Unable to add SCSI 
host\n");
+               free_irq(ha->irq, ha);
+               scsi_host_put(sh);
+               return -1;
+       }
        scsi_scan_host(sh);
 
        return 0;