提交 2a031aed 编写于 作者: C Clemens Ladisch 提交者: Takashi Iwai

sound: snd_ctl_elem_add: fix value count check

Make sure that no user element that has no values can be added.

The check for count>1024 is not needed because the count is checked
later for the individual control types.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
上级 64f1607f
......@@ -951,7 +951,7 @@ static int snd_ctl_elem_add(struct snd_ctl_file *file,
if (card->user_ctl_count >= MAX_USER_CONTROLS)
return -ENOMEM;
if (info->count > 1024)
if (info->count < 1)
return -EINVAL;
access = info->access == 0 ? SNDRV_CTL_ELEM_ACCESS_READWRITE :
(info->access & (SNDRV_CTL_ELEM_ACCESS_READWRITE|
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册