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| author | Al Viro <viro@zeniv.linux.org.uk> | 2013-09-22 22:17:15 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-10-25 07:34:53 +0400 |
| commit | e84f9e57b90ca89664d733a7cef19aa7ccd832f3 (patch) | |
| tree | 2766cbae82e38a4356b161a7f48abfd9e4db56ce /sound/core | |
| parent | 7b00ed6fe6321547b9d51f5bfb30e7b5932e6889 (diff) | |
| download | linux-e84f9e57b90ca89664d733a7cef19aa7ccd832f3.tar.xz | |
consolidate the reassignments of ->f_op in ->open() instances
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'sound/core')
| -rw-r--r-- | sound/core/sound.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/sound/core/sound.c b/sound/core/sound.c index f002bd911dae..437c25ea6403 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -153,7 +153,7 @@ static int snd_open(struct inode *inode, struct file *file) { unsigned int minor = iminor(inode); struct snd_minor *mptr = NULL; - const struct file_operations *old_fops; + const struct file_operations *new_fops; int err = 0; if (minor >= ARRAY_SIZE(snd_minors)) @@ -167,24 +167,14 @@ static int snd_open(struct inode *inode, struct file *file) return -ENODEV; } } - old_fops = file->f_op; - file->f_op = fops_get(mptr->f_ops); - if (file->f_op == NULL) { - file->f_op = old_fops; - err = -ENODEV; - } + new_fops = fops_get(mptr->f_ops); mutex_unlock(&sound_mutex); - if (err < 0) - return err; + if (!new_fops) + return -ENODEV; + replace_fops(file, new_fops); - if (file->f_op->open) { + if (file->f_op->open) err = file->f_op->open(inode, file); - if (err) { - fops_put(file->f_op); - file->f_op = fops_get(old_fops); - } - } - fops_put(old_fops); return err; } |