From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Tue, 15 May 2018 12:36:36 +0000 (+0900)
Subject: hcontrol: use position offset macro of TLV data
X-Git-Tag: v1.1.7~37
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=33f0888f0da191af49f17916f6548076d7125ea9;p=alsa-lib.git

hcontrol: use position offset macro of TLV data

A series of SNDRV_CTL_TLVO_XXX macro was introduced for position offset
of TLV data. This commit applies a code optimization.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/src/control/hcontrol.c b/src/control/hcontrol.c
index 7e775248..0cac8956 100644
--- a/src/control/hcontrol.c
+++ b/src/control/hcontrol.c
@@ -870,7 +870,7 @@ int snd_hctl_elem_tlv_write(snd_hctl_elem_t *elem, const unsigned int *tlv)
 {
 	assert(elem);
 	assert(tlv);
-	assert(tlv[1] >= 4);
+	assert(tlv[SNDRV_CTL_TLVO_LEN] >= 4);
 	return snd_ctl_elem_tlv_write(elem->hctl->ctl, &elem->id, tlv);
 }
 
@@ -886,7 +886,7 @@ int snd_hctl_elem_tlv_command(snd_hctl_elem_t *elem, const unsigned int *tlv)
 {
 	assert(elem);
 	assert(tlv);
-	assert(tlv[1] >= 4);
+	assert(tlv[SNDRV_CTL_TLVO_LEN] >= 4);
 	return snd_ctl_elem_tlv_command(elem->hctl->ctl, &elem->id, tlv);
 }