[PATCH] ALSA: line6: init buf to zero

[Edward Adam Davis]

Syzbot report KMSAN uninit-value warnings.
When alloc buffer for midi_buffer->buf, init mem to 0.

Reported-and-tested-by: syzbot+78eccfb8b3c9a85fc6c5@xxxxxxxxxxxxxxxxxxxxxxxxx
Closes: https://syzkaller.appspot.com/bug?extid=78eccfb8b3c9a85fc6c5
Signed-off-by: Edward Adam Davis <eadavis@xxxxxx>
---
 sound/usb/line6/midibuf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/line6/midibuf.c b/sound/usb/line6/midibuf.c
index e7f830f7526c..1b699cb3b38d 100644
--- a/sound/usb/line6/midibuf.c
+++ b/sound/usb/line6/midibuf.c
@@ -48,7 +48,7 @@ void line6_midibuf_reset(struct midi_buffer *this)
 
 int line6_midibuf_init(struct midi_buffer *this, int size, int split)
 {
-	this->buf = kmalloc(size, GFP_KERNEL);
+	this->buf = kzalloc(size, GFP_KERNEL);
 
 	if (this->buf == NULL)
 		return -ENOMEM;
-- 
2.43.0