ALSA: control: remove useless assignment in .info callback of PCM chmap element

Control elements for PCM chmap return information to userspace abount
the maximum number of available PCM channels as the number of values
in the element.

In current implementation the number is once initialized to zero, then
assigned to. This is useless and this commit fixes it.

Fixes: 2d3391ec0ecc ("ALSA: PCM: channel mapping API implementation")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20191214131351.28950-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 2236b5e..6f0a00f 100644 (file)
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -2308,7 +2308,6 @@ static int pcm_chmap_ctl_info(struct snd_kcontrol *kcontrol,
        struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
 
        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
-       uinfo->count = 0;
        uinfo->count = info->max_channels;
        uinfo->value.integer.min = 0;
        uinfo->value.integer.max = SNDRV_CHMAP_LAST;