[libcamera-devel] [PATCH v2] libcamera: camera: Check requests before queueing them
Niklas Söderlund
niklas.soderlund at ragnatech.se
Fri Apr 26 16:13:32 CEST 2019
Make sure all requests queued to a camera only contain streams which
have been configured and belong to the camera.
Signed-off-by: Niklas Söderlund <niklas.soderlund at ragnatech.se>
---
src/libcamera/camera.cpp | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/libcamera/camera.cpp b/src/libcamera/camera.cpp
index 655996f26224ef49..9cea3fd06238c1cb 100644
--- a/src/libcamera/camera.cpp
+++ b/src/libcamera/camera.cpp
@@ -732,6 +732,7 @@ Request *Camera::createRequest()
* \return 0 on success or a negative error code otherwise
* \retval -ENODEV The camera has been disconnected from the system
* \retval -EACCES The camera is not running so requests can't be queued
+ * \retval -EINVAL The request is invalid
*/
int Camera::queueRequest(Request *request)
{
@@ -741,6 +742,14 @@ int Camera::queueRequest(Request *request)
if (!stateIs(CameraRunning))
return -EACCES;
+ for (auto const &it : request->buffers()) {
+ Stream *stream = it.first;
+ if (activeStreams_.find(stream) == activeStreams_.end()) {
+ LOG(Camera, Error) << "Invalid request";
+ return -EINVAL;
+ }
+ }
+
int ret = request->prepare();
if (ret) {
LOG(Camera, Error) << "Failed to prepare request";
--
2.21.0
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