From 4d150c7faf8291fcd533ab721a0169c3249c26c2 Mon Sep 17 00:00:00 2001
From: Paul Elder <paul.elder@ideasonboard.com>
Date: Thu, 18 Jun 2020 18:36:17 +0900
Subject: v4l2: v4l2_camera_proxy: Don't allow streamon if no buffers have been
requested
Make VIDIOC_STREAMON return -EINVAL if no buffers have been allocated
with reqbufs.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
src/v4l2/v4l2_camera_proxy.cpp | 3 +++
1 file changed, 3 insertions(+)
(limited to 'src/v4l2')
diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp
index 941237c3..e54df4e6 100644
--- a/src/v4l2/v4l2_camera_proxy.cpp
+++ b/src/v4l2/v4l2_camera_proxy.cpp
@@ -630,6 +630,9 @@ int V4L2CameraProxy::vidioc_streamon(V4L2CameraFile *file, int *arg)
{
LOG(V4L2Compat, Debug) << "Servicing vidioc_streamon fd = " << file->efd();
+ if (bufferCount_ == 0)
+ return -EINVAL;
+
if (!validateBufferType(*arg))
return -EINVAL;
--
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