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ALSA: sound/core: use memdup_user()

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Remove open-coded memdup_user().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Li Zefan
2009-04-10 09:43:08 +08:00
committed by Takashi Iwai
parent 577c9c456f
commit ef44a1ec6e
5 changed files with 60 additions and 99 deletions
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9
sound/core/seq/seq_compat.c
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@@ -48,12 +48,11 @@ static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned
struct snd_seq_port_info *data;
mm_segment_t fs;
data = kmalloc(sizeof(*data), GFP_KERNEL);
if (! data)
return -ENOMEM;
data = memdup_user(data32, sizeof(*data32));
if (IS_ERR(data))
return PTR_ERR(data);
if (copy_from_user(data, data32, sizeof(*data32)) ||
get_user(data->flags, &data32->flags) ||
if (get_user(data->flags, &data32->flags) ||
get_user(data->time_queue, &data32->time_queue))
goto error;
data->kernel = NULL;