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96e5ad30
cloud-kernel
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体验新版 GitCode,发现更多精彩内容 >>
提交
96e5ad30
编写于
2月 01, 2008
作者:
B
Bartlomiej Zolnierkiewicz
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
ide: factor out code removing port from hwgroup from ide_unregister()
Signed-off-by:
N
Bartlomiej Zolnierkiewicz
<
bzolnier@gmail.com
>
上级
7cba97f1
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
36 addition
and
29 deletion
+36
-29
drivers/ide/ide.c
drivers/ide/ide.c
+36
-29
未找到文件。
drivers/ide/ide.c
浏览文件 @
96e5ad30
...
...
@@ -461,6 +461,41 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
hwif
->
hwif_data
=
tmp_hwif
->
hwif_data
;
}
static
void
ide_remove_port_from_hwgroup
(
ide_hwif_t
*
hwif
)
{
ide_hwgroup_t
*
hwgroup
=
hwif
->
hwgroup
;
spin_lock_irq
(
&
ide_lock
);
/*
* Remove us from the hwgroup, and free
* the hwgroup if we were the only member
*/
if
(
hwif
->
next
==
hwif
)
{
BUG_ON
(
hwgroup
->
hwif
!=
hwif
);
kfree
(
hwgroup
);
}
else
{
/* There is another interface in hwgroup.
* Unlink us, and set hwgroup->drive and ->hwif to
* something sane.
*/
ide_hwif_t
*
g
=
hwgroup
->
hwif
;
while
(
g
->
next
!=
hwif
)
g
=
g
->
next
;
g
->
next
=
hwif
->
next
;
if
(
hwgroup
->
hwif
==
hwif
)
{
/* Chose a random hwif for hwgroup->hwif.
* It's guaranteed that there are no drives
* left in the hwgroup.
*/
BUG_ON
(
hwgroup
->
drive
!=
NULL
);
hwgroup
->
hwif
=
g
;
}
BUG_ON
(
hwgroup
->
hwif
==
hwif
);
}
spin_unlock_irq
(
&
ide_lock
);
}
/**
* ide_unregister - free an IDE interface
* @index: index of interface (will change soon to a pointer)
...
...
@@ -528,36 +563,8 @@ void ide_unregister(unsigned int index)
if
(
irq_count
==
1
)
free_irq
(
hwif
->
irq
,
hwgroup
);
spin_lock_irq
(
&
ide_lock
);
/*
* Remove us from the hwgroup, and free
* the hwgroup if we were the only member
*/
if
(
hwif
->
next
==
hwif
)
{
BUG_ON
(
hwgroup
->
hwif
!=
hwif
);
kfree
(
hwgroup
);
}
else
{
/* There is another interface in hwgroup.
* Unlink us, and set hwgroup->drive and ->hwif to
* something sane.
*/
g
=
hwgroup
->
hwif
;
while
(
g
->
next
!=
hwif
)
g
=
g
->
next
;
g
->
next
=
hwif
->
next
;
if
(
hwgroup
->
hwif
==
hwif
)
{
/* Chose a random hwif for hwgroup->hwif.
* It's guaranteed that there are no drives
* left in the hwgroup.
*/
BUG_ON
(
hwgroup
->
drive
!=
NULL
);
hwgroup
->
hwif
=
g
;
}
BUG_ON
(
hwgroup
->
hwif
==
hwif
);
}
ide_remove_port_from_hwgroup
(
hwif
);
/* More messed up locking ... */
spin_unlock_irq
(
&
ide_lock
);
device_unregister
(
&
hwif
->
gendev
);
wait_for_completion
(
&
hwif
->
gendev_rel_comp
);
...
...
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