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nexedi
linux
Commits
6a670cdd
Commit
6a670cdd
authored
Jan 10, 2003
by
Dave Jones
Committed by
Dave Jones
Jan 10, 2003
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Plain Diff
[WATCHDOG] simplify advwdt_open, and add C99 struct initialisers
parent
97cb93ec
Changes
1
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Showing
1 changed file
with
26 additions
and
31 deletions
+26
-31
drivers/char/watchdog/advantechwdt.c
drivers/char/watchdog/advantechwdt.c
+26
-31
No files found.
drivers/char/watchdog/advantechwdt.c
View file @
6a670cdd
...
...
@@ -157,26 +157,23 @@ advwdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
static
int
advwdt_open
(
struct
inode
*
inode
,
struct
file
*
file
)
{
switch
(
minor
(
inode
->
i_rdev
))
{
case
WATCHDOG_MINOR
:
spin_lock
(
&
advwdt_lock
);
if
(
advwdt_is_open
)
{
spin_unlock
(
&
advwdt_lock
);
return
-
EBUSY
;
}
if
(
nowayout
)
{
MOD_INC_USE_COUNT
;
}
/*
* Activate
*/
advwdt_is_open
=
1
;
advwdt_ping
();
if
(
minor
(
inode
->
i_rdev
)
=
WATCHDOG_MINOR
)
{
spin_lock
(
&
advwdt_lock
);
if
(
advwdt_is_open
)
{
spin_unlock
(
&
advwdt_lock
);
return
0
;
default:
return
-
ENODEV
;
return
-
EBUSY
;
}
if
(
nowayout
)
MOD_INC_USE_COUNT
;
/* Activate */
advwdt_is_open
=
1
;
advwdt_ping
();
spin_unlock
(
&
advwdt_lock
);
return
0
;
}
else
{
return
-
ENODEV
;
}
}
...
...
@@ -185,9 +182,9 @@ advwdt_close(struct inode *inode, struct file *file)
{
if
(
minor
(
inode
->
i_rdev
)
==
WATCHDOG_MINOR
)
{
spin_lock
(
&
advwdt_lock
);
if
(
!
nowayout
)
{
if
(
!
nowayout
)
inb_p
(
WDT_STOP
);
}
advwdt_is_open
=
0
;
spin_unlock
(
&
advwdt_lock
);
}
...
...
@@ -202,10 +199,10 @@ static int
advwdt_notify_sys
(
struct
notifier_block
*
this
,
unsigned
long
code
,
void
*
unused
)
{
if
(
code
==
SYS_DOWN
||
code
==
SYS_HALT
)
{
if
(
code
==
SYS_DOWN
||
code
==
SYS_HALT
)
/* Turn the WDT off */
inb_p
(
WDT_STOP
);
}
return
NOTIFY_DONE
;
}
...
...
@@ -223,9 +220,9 @@ static struct file_operations advwdt_fops = {
};
static
struct
miscdevice
advwdt_miscdev
=
{
WATCHDOG_MINOR
,
"watchdog"
,
&
advwdt_fops
.
minor
=
WATCHDOG_MINOR
,
.
name
=
"watchdog"
,
.
fops
=
&
advwdt_fops
};
/*
...
...
@@ -234,9 +231,9 @@ static struct miscdevice advwdt_miscdev = {
*/
static
struct
notifier_block
advwdt_notifier
=
{
advwdt_notify_sys
,
NULL
,
0
.
self
=
advwdt_notify_sys
,
.
next
=
NULL
,
.
priority
=
0
};
static
void
__init
...
...
@@ -290,5 +287,3 @@ module_exit(advwdt_exit);
MODULE_LICENSE
(
"GPL"
);
/* end of advantechwdt.c */
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