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体验新版 GitCode,发现更多精彩内容 >>
提交
bdbf6943
编写于
8月 26, 2012
作者:
A
Al Viro
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
switch SNDRV_PCM_IOCTL_LINK to fget_light()
Signed-off-by:
N
Al Viro
<
viro@zeniv.linux.org.uk
>
上级
4109633f
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
7 addition
and
6 deletion
+7
-6
sound/core/pcm_native.c
sound/core/pcm_native.c
+7
-6
未找到文件。
sound/core/pcm_native.c
浏览文件 @
bdbf6943
...
@@ -1563,25 +1563,25 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream)
...
@@ -1563,25 +1563,25 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream)
/* WARNING: Don't forget to fput back the file */
/* WARNING: Don't forget to fput back the file */
static
struct
file
*
snd_pcm_file_fd
(
int
fd
)
static
struct
file
*
snd_pcm_file_fd
(
int
fd
,
int
*
fput_needed
)
{
{
struct
file
*
file
;
struct
file
*
file
;
struct
inode
*
inode
;
struct
inode
*
inode
;
unsigned
int
minor
;
unsigned
int
minor
;
file
=
fget
(
f
d
);
file
=
fget
_light
(
fd
,
fput_neede
d
);
if
(
!
file
)
if
(
!
file
)
return
NULL
;
return
NULL
;
inode
=
file
->
f_path
.
dentry
->
d_inode
;
inode
=
file
->
f_path
.
dentry
->
d_inode
;
if
(
!
S_ISCHR
(
inode
->
i_mode
)
||
if
(
!
S_ISCHR
(
inode
->
i_mode
)
||
imajor
(
inode
)
!=
snd_major
)
{
imajor
(
inode
)
!=
snd_major
)
{
fput
(
file
);
fput
_light
(
file
,
*
fput_needed
);
return
NULL
;
return
NULL
;
}
}
minor
=
iminor
(
inode
);
minor
=
iminor
(
inode
);
if
(
!
snd_lookup_minor_data
(
minor
,
SNDRV_DEVICE_TYPE_PCM_PLAYBACK
)
&&
if
(
!
snd_lookup_minor_data
(
minor
,
SNDRV_DEVICE_TYPE_PCM_PLAYBACK
)
&&
!
snd_lookup_minor_data
(
minor
,
SNDRV_DEVICE_TYPE_PCM_CAPTURE
))
{
!
snd_lookup_minor_data
(
minor
,
SNDRV_DEVICE_TYPE_PCM_CAPTURE
))
{
fput
(
file
);
fput
_light
(
file
,
*
fput_needed
);
return
NULL
;
return
NULL
;
}
}
return
file
;
return
file
;
...
@@ -1597,8 +1597,9 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
...
@@ -1597,8 +1597,9 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
struct
snd_pcm_file
*
pcm_file
;
struct
snd_pcm_file
*
pcm_file
;
struct
snd_pcm_substream
*
substream1
;
struct
snd_pcm_substream
*
substream1
;
struct
snd_pcm_group
*
group
;
struct
snd_pcm_group
*
group
;
int
fput_needed
;
file
=
snd_pcm_file_fd
(
fd
);
file
=
snd_pcm_file_fd
(
fd
,
&
fput_needed
);
if
(
!
file
)
if
(
!
file
)
return
-
EBADFD
;
return
-
EBADFD
;
pcm_file
=
file
->
private_data
;
pcm_file
=
file
->
private_data
;
...
@@ -1633,7 +1634,7 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
...
@@ -1633,7 +1634,7 @@ static int snd_pcm_link(struct snd_pcm_substream *substream, int fd)
write_unlock_irq
(
&
snd_pcm_link_rwlock
);
write_unlock_irq
(
&
snd_pcm_link_rwlock
);
up_write
(
&
snd_pcm_link_rwsem
);
up_write
(
&
snd_pcm_link_rwsem
);
_nolock:
_nolock:
fput
(
file
);
fput
_light
(
file
,
fput_needed
);
if
(
res
<
0
)
if
(
res
<
0
)
kfree
(
group
);
kfree
(
group
);
return
res
;
return
res
;
...
...
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