In former commit, actual operations of each ioctl command get argument in kernel space. Copying from/to user space is performed outside of the function.
This commit optimizes to the new design.
Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp --- sound/core/seq/seq_clientmgr.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c index a6369ca..439e2df6 100644 --- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -1114,9 +1114,12 @@ static unsigned int snd_seq_poll(struct file *file, poll_table * wait) /*-----------------------------------------------------*/
-static int seq_ioctl_pversion(struct snd_seq_client *client, void __user *arg) +static int seq_ioctl_pversion(struct snd_seq_client *client, void *arg) { - return put_user(SNDRV_SEQ_VERSION, (int __user *)arg) ? -EFAULT : 0; + int *version = arg; + + *version = SNDRV_SEQ_VERSION; + return 0; }
static int seq_ioctl_client_id(struct snd_seq_client *client, void __user *arg)