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 | 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 5e81d4f..123d8a1 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() */
--
2.7.4
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