[PATCH] mixcomwd janitor work

simple region handling cleanups.

[PATCH] mixcomwd janitor work
simple region handling cleanups.
f77c18c6 · Dave Jones · Linus Torvalds · 19a8356e · f77c18c6
Commit f77c18c6 authored May 30, 2002 by Dave Jones Committed by Linus Torvalds May 30, 2002
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drivers/char/mixcomwd.c drivers/char/mixcomwd.c +5 -1

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--- a/drivers/char/mixcomwd.c
+++ b/drivers/char/mixcomwd.c
@@ -247,11 +247,15 @@ static int __init mixcomwd_init(void)
 		return -ENODEV;
 	}

-	request_region(watchdog_port,1,"MixCOM watchdog");
+	if (!request_region(watchdog_port,1,"MixCOM watchdog"))
+		return -EIO;
 		
 	ret = misc_register(&mixcomwd_miscdev);
 	if (ret)
+	{
+		release_region(watchdog_port, 1);
 		return ret;
+	}
 	
 	printk(KERN_INFO "MixCOM watchdog driver v%s, watchdog port at 0x%3x\n",VERSION,watchdog_port);