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libcamera: Fix documentation of buffer allocation/export functions

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The V4L2VideoDevice::exportBuffers(),
PipelineHandler::exportFrameBuffers() and
FrameBufferAllocator::allocate() functions all return the number of
allocated buffers on success, but are documented as returning 0 in that
case. Fix their documentation.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
This commit is contained in:
Laurent Pinchart
2020-01-20 13:24:50 +02:00
parent 667f53b522
commit ce2ea24fb4
3 changed files with 8 additions and 9 deletions
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11
src/libcamera/framebuffer_allocator.cpp
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@@ -108,7 +108,8 @@ FrameBufferAllocator::~FrameBufferAllocator()
* Upon successful allocation, the allocated buffers can be retrieved with the
* buffers() method.
*
* \return 0 on success or a negative error code otherwise
* \return The number of allocated buffers on success or a negative error code
* otherwise
* \retval -EACCES The camera is not in a state where buffers can be allocated
* \retval -EINVAL The \a stream does not belong to the camera or the stream is
* not part of the active camera configuration
@@ -140,12 +141,8 @@ int FrameBufferAllocator::allocate(Stream *stream)
return -EBUSY;
}
int ret = camera_->pipe_->exportFrameBuffers(camera_.get(), stream,
&buffers_[stream]);
if (ret)
return ret;
return 0;
return camera_->pipe_->exportFrameBuffers(camera_.get(), stream,
&buffers_[stream]);
}
/**