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ALSA: usb-audio: Use snprintf instead of sprintf in build_mixer_unit_ctl

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Simplified code by removing redundant assignment of sprintf return value
and improved safety by replacing sprintf with snprintf.

Signed-off-by: Zhu Jun <zhujun2@cmss.chinamobile.com>
Link: https://patch.msgid.link/20241009070944.6937-1-zhujun2@cmss.chinamobile.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Zhu Jun 2024-10-09 00:09:44 -07:00 committed by Takashi Iwai
parent 0498a04e39
commit 0845b3e0d5
1 changed files with 2 additions and 1 deletions
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3
sound/usb/mixer.c
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@ -2224,7 +2224,8 @@ static void build_mixer_unit_ctl(struct mixer_build *state,
len = get_term_name(state->chip, iterm, kctl->id.name,
sizeof(kctl->id.name), 0);
if (!len)
len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1);
snprintf(kctl->id.name, sizeof(kctl->id.name), "Mixer Source %d", in_ch + 1);
append_ctl_name(kctl, " Volume");
usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n",