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 439e2df6..9cf5a82 100644 --- a/sound/core/seq/seq_clientmgr.c +++ b/sound/core/seq/seq_clientmgr.c @@ -1122,9 +1122,12 @@ static int seq_ioctl_pversion(struct snd_seq_client *client, void *arg) return 0; }
-static int seq_ioctl_client_id(struct snd_seq_client *client, void __user *arg) +static int seq_ioctl_client_id(struct snd_seq_client *client, void *arg) { - return put_user(client->number, (int __user *)arg) ? -EFAULT : 0; + int *number = arg; + + *number = client->number; + return 0; }
/* SYSTEM_INFO ioctl() */