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| author | Jonathan Corbet <corbet@lwn.net> | 2008-05-15 16:39:03 -0600 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2008-06-20 14:05:50 -0600 |
| commit | 78a3c3d7c6b89085610edfe86f7790144afc737e (patch) | |
| tree | b3f4937a220655b7a6a5221bf8d544c8e62d19f7 /sound/core/sound.c | |
| parent | fc7f687a6878e19f7ce58cb8a65659cd2730b586 (diff) | |
| download | lwn-78a3c3d7c6b89085610edfe86f7790144afc737e.tar.gz lwn-78a3c3d7c6b89085610edfe86f7790144afc737e.zip | |
sound: cdev lock_kernel() pushdown
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'sound/core/sound.c')
| -rw-r--r-- | sound/core/sound.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sound/core/sound.c b/sound/core/sound.c index 812f91b3de5b..65b66fa6f97e 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -21,6 +21,7 @@ #include <linux/init.h> #include <linux/slab.h> +#include <linux/smp_lock.h> #include <linux/time.h> #include <linux/device.h> #include <linux/moduleparam.h> @@ -121,7 +122,7 @@ void *snd_lookup_minor_data(unsigned int minor, int type) EXPORT_SYMBOL(snd_lookup_minor_data); -static int snd_open(struct inode *inode, struct file *file) +static int __snd_open(struct inode *inode, struct file *file) { unsigned int minor = iminor(inode); struct snd_minor *mptr = NULL; @@ -163,6 +164,18 @@ static int snd_open(struct inode *inode, struct file *file) return err; } + +/* BKL pushdown: nasty #ifdef avoidance wrapper */ +static int snd_open(struct inode *inode, struct file *file) +{ + int ret; + + lock_kernel(); + ret = __snd_open(inode, file); + unlock_kernel(); + return ret; +} + static const struct file_operations snd_fops = { .owner = THIS_MODULE, |