From 9639f32db5f8c848702fccbbbd7d7a111db64143 Mon Sep 17 00:00:00 2001
From: Wim Taymans <wtaymans@redhat.com>
Date: Tue, 29 Sep 2020 17:06:53 +0200
Subject: [PATCH] v4l2: zero some structures before ioctl

---
 spa/plugins/v4l2/v4l2-utils.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/spa/plugins/v4l2/v4l2-utils.c b/spa/plugins/v4l2/v4l2-utils.c
index 757b3e0ab..26b54ba9c 100644
--- a/spa/plugins/v4l2/v4l2-utils.c
+++ b/spa/plugins/v4l2/v4l2-utils.c
@@ -582,6 +582,7 @@ spa_v4l2_enum_format(struct impl *this, int seq,
 
 			port->fmtdesc.pixelformat = info->fourcc;
 
+			spa_zero(fmt);
 			fmt.type = port->fmtdesc.type;
 			fmt.fmt.pix.pixelformat = info->fourcc;
 			fmt.fmt.pix.field = V4L2_FIELD_ANY;
@@ -977,6 +978,7 @@ static int query_ext_ctrl_ioctl(struct port *port, struct v4l2_query_ext_ctrl *q
 			return res;
 		port->have_query_ext_ctrl = false;
 	}
+	spa_zero(qc);
 	qc.id = qctrl->id;
 	res = xioctl(dev->fd, VIDIOC_QUERYCTRL, &qc);
 	if (res == 0) {