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 2338468..a90a4a3 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -1677,16 +1677,12 @@ int snd_seq_set_queue_tempo(int client, struct snd_seq_queue_tempo *tempo)
EXPORT_SYMBOL(snd_seq_set_queue_tempo);
-static int seq_ioctl_set_queue_tempo(struct snd_seq_client *client,
- void __user *arg)
+static int seq_ioctl_set_queue_tempo(struct snd_seq_client *client, void *arg)
{
+ struct snd_seq_queue_tempo *tempo = arg;
int result;
- struct snd_seq_queue_tempo tempo;
-
- if (copy_from_user(&tempo, arg, sizeof(tempo)))
- return -EFAULT;
- result = snd_seq_set_queue_tempo(client->number, &tempo);
+ result = snd_seq_set_queue_tempo(client->number, tempo);
return result < 0 ? result : 0;
}
--
2.7.4
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
