[SCSI] mpt fusion: Change call back indices to u8 from int

The call back index requires only u8 but in lot of places it is
referred as int, now everywhere the call back index variables are
declared as u8 with uniform name cb_idx

signed-off-by: Sathya Prakash <sathya.prakash@lsi.com>
Acked-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c
index dce1e9c2cdc0..89cab5798e33 100644
--- a/drivers/message/fusion/mptctl.c
+++ b/drivers/message/fusion/mptctl.c
@@ -83,7 +83,7 @@ MODULE_VERSION(my_VERSION);
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 
-static int mptctl_id = -1;
+static u8 mptctl_id = MPT_MAX_PROTOCOL_DRIVERS;
 
 static DECLARE_WAIT_QUEUE_HEAD ( mptctl_wait );
 
@@ -2936,7 +2936,8 @@ static int __init mptctl_init(void)
          *  Install our handler
          */
         ++where;
-        if ((mptctl_id = mpt_register(mptctl_reply, MPTCTL_DRIVER)) < 0) {
+        mptctl_id = mpt_register(mptctl_reply, MPTCTL_DRIVER);
+        if (!mptctl_id || mptctl_id >= MPT_MAX_PROTOCOL_DRIVERS) {
                 printk(KERN_ERR MYNAM ": ERROR: Failed to register with Fusion MPT base driver\n");
                 misc_deregister(&mptctl_miscdev);
                 err = -EBUSY;