[PATCH] drivers/scsi/wd7000.c: check_region -> request_region (241p9)

From: Rasmus Andersen (rasmus@jaquet.dk)
Date: Tue Jan 23 2001 - 17:52:15 EST


Hi.

The following patch makes drivers/scsi/wd7000.c use request_region
instead of check_region+request_region. It also drops a panic() and
changes error paths to be forward gotos (in part necessary by the
request_region change).

It applies cleanly against ac10 and 241p9.

Comments?

--- linux-ac10-clean/drivers/scsi/wd7000.c Sun Nov 12 04:01:11 2000
+++ linux-ac10/drivers/scsi/wd7000.c Mon Jan 22 21:05:10 2001
@@ -863,7 +863,7 @@
          */
         if (freescbs < needed) {
             busy = 0;
- panic ("wd7000: can't get enough free SCBs.\n");
+ printk (KERN_ERR "wd7000: can't get enough free SCBs.\n");
             restore_flags (flags);
             return (NULL);
         }
@@ -1593,7 +1593,7 @@
         printk ("wd7000_detect: check IO 0x%x region...\n", iobase);
 #endif
 
- if (!check_region (iobase, 4)) {
+ if (request_region (iobase, 4, "wd7000")) {
 
 #ifdef WD7000_DEBUG
             printk ("wd7000_detect: ASC reset (IO 0x%x) ...", iobase);
@@ -1609,12 +1609,12 @@
 #ifdef WD7000_DEBUG
             {
                 printk ("failed!\n");
- continue;
+ goto err_release;
             }
- else
+ else
                 printk ("ok!\n");
 #else
- continue;
+ goto err_release;
 #endif
 
             if (inb (iobase + ASC_INTR_STAT) == 1) {
@@ -1627,7 +1627,8 @@
                  */
                 sh = scsi_register (tpnt, sizeof (Adapter));
                 if(sh==NULL)
- continue;
+ goto err_release;
+
                 host = (Adapter *) sh->hostdata;
 
 #ifdef WD7000_DEBUG
@@ -1650,11 +1651,8 @@
                         host->iobase, host->irq, host->dma);
 #endif
 
- if (!wd7000_init (host)) { /* Initialization failed */
- scsi_unregister (sh);
-
- continue;
- }
+ if (!wd7000_init (host)) /* Initialization failed */
+ goto err_unregister;
 
                 /*
                  * OK from here - we'll use this adapter/configuration.
@@ -1662,11 +1660,6 @@
                 wd7000_revision (host); /* important for scatter/gather */
 
                 /*
- * Register our ports.
- */
- request_region (host->iobase, 4, "wd7000");
-
- /*
                  * For boards before rev 6.0, scatter/gather isn't supported.
                  */
                 if (host->rev1 < 6)
@@ -1690,6 +1683,13 @@
         else
             printk ("wd7000_detect: IO 0x%x region already allocated!\n", iobase);
 #endif
+
+ continue;
+
+ err_unregister:
+ scsi_unregister (sh);
+ err_release:
+ release_region(iobase, 4);
 
     }
 

-- 
Regards,
        Rasmus(rasmus@jaquet.dk)

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This archive was generated by hypermail 2b29 : Tue Jan 23 2001 - 21:00:29 EST