android/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[WATCHDOG] ib700wdt.c small clean-up's

Browse Source 
* Fix identation
* Add watchdog "mandatory" WDIOC_GETBOOTSTATUS ioctl
* On unexpected close -> since this is considered as
  a write to the watchdog device, make sure we ping a
  last time.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This commit is contained in:
Wim Van Sebroeck 2007-01-27 22:07:03 +01:00
parent f6e4803969
commit c9d7710ea2
1 changed files with 10 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/char/watchdog/ib700wdt.c
View File

@ -3,8 +3,8 @@
* *
* (c) Copyright 2001 Charles Howes <chowes@vsol.net> * (c) Copyright 2001 Charles Howes <chowes@vsol.net>
* *
* Based on advantechwdt.c which is based on acquirewdt.c which * Based on advantechwdt.c which is based on acquirewdt.c which
* is based on wdt.c. * is based on wdt.c.
* *
* (c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl> * (c) Copyright 2000-2001 Marek Michalkiewicz <marekm@linux.org.pl>
* *
@ -25,9 +25,9 @@
* *
* (c) Copyright 1995 Alan Cox <alan@redhat.com> * (c) Copyright 1995 Alan Cox <alan@redhat.com>
* *
* 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com> * 14-Dec-2001 Matt Domsch <Matt_Domsch@dell.com>
* Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT * Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT
* Added timeout module option to override default * Added timeout module option to override default
* *
*/ */
@ -201,6 +201,7 @@ ibwdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
break; break;
case WDIOC_GETSTATUS: case WDIOC_GETSTATUS:
case WDIOC_GETBOOTSTATUS:
return put_user(0, p); return put_user(0, p);
case WDIOC_KEEPALIVE: case WDIOC_KEEPALIVE:
@ -246,11 +247,12 @@ static int
ibwdt_close(struct inode *inode, struct file *file) ibwdt_close(struct inode *inode, struct file *file)
{ {
spin_lock(&ibwdt_lock); spin_lock(&ibwdt_lock);
if (expect_close == 42) if (expect_close == 42) {
ibwdt_disable(); ibwdt_disable();
else } else {
printk(KERN_CRIT PFX "WDT device closed unexpectedly. WDT will not stop!\n"); printk(KERN_CRIT PFX "WDT device closed unexpectedly. WDT will not stop!\n");
ibwdt_ping();
}
clear_bit(0, &ibwdt_is_open); clear_bit(0, &ibwdt_is_open);
expect_close = 0; expect_close = 0;
spin_unlock(&ibwdt_lock); spin_unlock(&ibwdt_lock);