[PATCH] ALSA: usb-audio: US16x08: Initialize array before use

From: Tanya Agarwal
Date: Sat Dec 28 2024 - 02:19:48 EST


From: Tanya Agarwal <tanyaagarwal25699@xxxxxxxxx>

Initialize array before use in mixer_us16x08.c to prevent the
issues related to uninitialized memory access.

CID 1410197: (#1 of 1): Uninitialized scalar variable (UNINIT)
uninit_use_in_call: Using uninitialized value *meter_urb when
calling get_meter_levels_from_urb

Coverity Link:
https://scan7.scan.coverity.com/#/project-view/52849/11354?selectedIssue=1410197

Signed-off-by: Tanya Agarwal <tanyaagarwal25699@xxxxxxxxx>
---
sound/usb/mixer_us16x08.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/mixer_us16x08.c b/sound/usb/mixer_us16x08.c
index 6eb7d93b358d..20ac32635f1f 100644
--- a/sound/usb/mixer_us16x08.c
+++ b/sound/usb/mixer_us16x08.c
@@ -687,7 +687,7 @@ static int snd_us16x08_meter_get(struct snd_kcontrol *kcontrol,
struct usb_mixer_elem_info *elem = kcontrol->private_data;
struct snd_usb_audio *chip = elem->head.mixer->chip;
struct snd_us16x08_meter_store *store = elem->private_data;
- u8 meter_urb[64];
+ u8 meter_urb[64] = {0};

switch (kcontrol->private_value) {
case 0: {
--
2.39.5