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| author | Takashi Iwai <tiwai@suse.de> | 2010-04-13 11:49:04 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-04-13 12:01:21 +0200 |
| commit | 02f4865fa415a87de28cc8c2e4d798ff46be1cf8 (patch) | |
| tree | 7d8e1087fd17e0390439ad4fe3cdd59477c3032c /sound/core/seq | |
| parent | 73029e0ff18dfac8a1aab1dc188e1e150bbe3adc (diff) | |
| download | linux-02f4865fa415a87de28cc8c2e4d798ff46be1cf8.tar.gz linux-02f4865fa415a87de28cc8c2e4d798ff46be1cf8.tar.bz2 linux-02f4865fa415a87de28cc8c2e4d798ff46be1cf8.zip | |
ALSA: core - Define llseek fops
Set no_llseek to llseek file ops of each sound component (but for hwdep).
This avoids the implicit BKL invocation via generic_file_llseek() used
as default when fops.llseek is NULL.
Also call nonseekable_open() at each open ops to ensure the file flags
have no seek bit.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/seq')
| -rw-r--r-- | sound/core/seq/seq_clientmgr.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c index 48eca9ff9ee7..99a485f13648 100644 --- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -318,6 +318,11 @@ static int snd_seq_open(struct inode *inode, struct file *file) int c, mode; /* client id */ struct snd_seq_client *client; struct snd_seq_user_client *user; + int err; + + err = nonseekable_open(inode, file); + if (err < 0) + return err; if (mutex_lock_interruptible(®ister_mutex)) return -ERESTARTSYS; @@ -2550,6 +2555,7 @@ static const struct file_operations snd_seq_f_ops = .write = snd_seq_write, .open = snd_seq_open, .release = snd_seq_release, + .llseek = no_llseek, .poll = snd_seq_poll, .unlocked_ioctl = snd_seq_ioctl, .compat_ioctl = snd_seq_ioctl_compat, |