Mesa (main): freedreno/drm/virtio: Appease valgrind

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Module: Mesa
Branch: main
Commit: 0004cae6384208c4fa884fd153b509a762998915
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0004cae6384208c4fa884fd153b509a762998915

Author: Rob Clark <robdclark at chromium.org>
Date:   Thu Apr 21 11:39:08 2022 -0700

freedreno/drm/virtio: Appease valgrind

Valgrind isn't seeing that the kernel is initializing the caps (or
returning an error).

Signed-off-by: Rob Clark <robdclark at chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16086>

---

 src/freedreno/drm/virtio/virtio_device.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/freedreno/drm/virtio/virtio_device.c b/src/freedreno/drm/virtio/virtio_device.c
index 47c0f054fc4..1c748dbf5ed 100644
--- a/src/freedreno/drm/virtio/virtio_device.c
+++ b/src/freedreno/drm/virtio/virtio_device.c
@@ -53,6 +53,8 @@ get_capset(int fd, struct virgl_renderer_capset_drm *caps)
          .size = sizeof(*caps),
    };
 
+   memset(caps, 0, sizeof(*caps));
+
    return drmIoctl(fd, DRM_IOCTL_VIRTGPU_GET_CAPS, &args);
 }