Commit de6c642c authored by Alan Cox's avatar Alan Cox Committed by Linus Torvalds
Browse files

[PATCH] SBC EPX does not check/claim I/O ports it uses (2nd Edition) 



Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 54239802

drivers/char/watchdog/sbc_epx_c3.c

+11 −2
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <linux/notifier.h>

#include <linux/reboot.h>

#include <linux/init.h>

#include <linux/ioport.h>

#include <asm/uaccess.h>

#include <asm/io.h>
@@ -181,11 +182,14 @@ static int __init watchdog_init(void) 
{

	int ret;



	if (!request_region(EPXC3_WATCHDOG_CTL_REG, 2, "epxc3_watchdog"))

		return -EBUSY;



	ret = register_reboot_notifier(&epx_c3_notifier);

	if (ret) {

		printk(KERN_ERR PFX "cannot register reboot notifier "

			"(err=%d)\n", ret);

		return ret;

		goto out;

	}



	ret = misc_register(&epx_c3_miscdev);
@@ -193,18 +197,23 @@ static int __init watchdog_init(void) 
		printk(KERN_ERR PFX "cannot register miscdev on minor=%d "

			"(err=%d)\n", WATCHDOG_MINOR, ret);

		unregister_reboot_notifier(&epx_c3_notifier);

		return ret;

		goto out;

	}



	printk(banner);



	return 0;



out:

	release_region(EPXC3_WATCHDOG_CTL_REG, 2);

	return ret;

}



static void __exit watchdog_exit(void)

{

	misc_deregister(&epx_c3_miscdev);

	unregister_reboot_notifier(&epx_c3_notifier);

	release_region(EPXC3_WATCHDOG_CTL_REG, 2);

}



module_init(watchdog_init);