[PATCH] remove some more check_region stuff

Removed some more references to check_region().

I checked these changes into the 'checkreg' branch of
rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6.git

The only valid references remaining are in:
drivers/scsi/advansys.c
drivers/scsi/BusLogic.c
drivers/cdrom/sbpcd.c
sound/oss/pss.c

  Remove last vestiges of ide_check_region()
  drivers/char/specialix: trim trailing whitespace
  drivers/char/specialix: eliminate use of check_region()
  Remove outdated and unused references to check_region()
  [sound oss] remove check_region() usage from cs4232, wavfront
  [netdrvr eepro] trim trailing whitespace
  [netdrvr eepro] remove check_region() usage

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 27 insertions, 11 deletions

diff --git a/sound/oss/wavfront.c b/sound/oss/wavfront.c
index b92ba8921638..b1a4eeb9dc08 100644
--- a/sound/oss/wavfront.c
+++ b/sound/oss/wavfront.c
@@ -2434,7 +2434,7 @@ static int __init detect_wavefront (int irq, int io_base)
            consumes 16.
         */
 
-        if (check_region (io_base, 16)) {
+        if (!request_region (io_base, 16, "wavfront")) {
                 printk (KERN_ERR LOGNAME "IO address range 0x%x - 0x%x "
                         "already in use - ignored\n", dev.base,
                         dev.base+15);
@@ -2466,10 +2466,13 @@ static int __init detect_wavefront (int irq, int io_base)
                 } else {
                         printk (KERN_WARNING LOGNAME "not raw, but no "
                                 "hardware version!\n");
+                        release_region (io_base, 16);
                         return 0;
                 }
 
                 if (!wf_raw) {
+                        /* will re-acquire region in install_wavefront() */
+                        release_region (io_base, 16);
                         return 1;
                 } else {
                         printk (KERN_INFO LOGNAME
@@ -2489,6 +2492,7 @@ static int __init detect_wavefront (int irq, int io_base)
 
         if (wavefront_hw_reset ()) {
                 printk (KERN_WARNING LOGNAME "hardware reset failed\n");
+                release_region (io_base, 16);
                 return 0;
         }
 
@@ -2496,6 +2500,8 @@ static int __init detect_wavefront (int irq, int io_base)
 
         dev.has_fx = (detect_wffx () == 0);
 
+        /* will re-acquire region in install_wavefront() */
+        release_region (io_base, 16);
         return 1;
 }
 
@@ -2804,17 +2810,27 @@ static int __init wavefront_init (int atboot)
 }
 
 static int __init install_wavefront (void)
-
 {
+        if (!request_region (dev.base+2, 6, "wavefront synth"))
+                return -1;
+
+        if (dev.has_fx) {
+                if (!request_region (dev.base+8, 8, "wavefront fx")) {
+                        release_region (dev.base+2, 6);
+                        return -1;
+                }
+        }
+
         if ((dev.synth_dev = register_sound_synth (&wavefront_fops, -1)) < 0) {
                 printk (KERN_ERR LOGNAME "cannot register raw synth\n");
-                return -1;
+                goto err_out;
         }
 
 #if OSS_SUPPORT_LEVEL & OSS_SUPPORT_SEQ
         if ((dev.oss_dev = sound_alloc_synthdev()) == -1) {
                 printk (KERN_ERR LOGNAME "Too many sequencers\n");
-                return -1;
+                /* FIXME: leak: should unregister sound synth */
+                goto err_out;
         } else {
                 synth_devs[dev.oss_dev] = &wavefront_operations;
         }
@@ -2827,20 +2843,20 @@ static int __init install_wavefront (void)
                 sound_unload_synthdev (dev.oss_dev);
 #endif /* OSS_SUPPORT_SEQ */ 
 
-                return -1;
+                goto err_out;
         }
     
-        request_region (dev.base+2, 6, "wavefront synth");
-
-        if (dev.has_fx) {
-                request_region (dev.base+8, 8, "wavefront fx");
-        }
-
         if (wavefront_config_midi ()) {
                 printk (KERN_WARNING LOGNAME "could not initialize MIDI.\n");
         }
 
         return dev.oss_dev;
+
+err_out:
+        release_region (dev.base+2, 6);
+        if (dev.has_fx)
+                release_region (dev.base+8, 8);
+        return -1;
 }
 
 static void __exit uninstall_wavefront (void)