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@xxxxxxxxxxxxx>
---
sound/core/seq/seq_clientmgr.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index aa937c0..167be82 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -1538,15 +1538,11 @@ static int seq_ioctl_create_queue(struct snd_seq_client *client, void *arg)
}
/* DELETE_QUEUE ioctl() */
-static int seq_ioctl_delete_queue(struct snd_seq_client *client,
- void __user *arg)
+static int seq_ioctl_delete_queue(struct snd_seq_client *client, void *arg)
{
- struct snd_seq_queue_info info;
-
- if (copy_from_user(&info, arg, sizeof(info)))
- return -EFAULT;
+ struct snd_seq_queue_info *info = arg;
- return snd_seq_queue_delete(client->number, info.queue);
+ return snd_seq_queue_delete(client->number, info->queue);
}
/* GET_QUEUE_INFO ioctl() */
--
2.7.4
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