Code must be resilient to enable a queue many times.
At the moment the queue is resetting so it's definitely not the expected
behavior.
Fixes: 2c53d0f64c06 ("vdpasim: vDPA device simulator")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Eugenio Pérez <eperezma@xxxxxxxxxx>
---
drivers/vdpa/vdpa_sim/vdpa_sim.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index ddbe142af09a..b53cd00ad161 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -355,9 +355,10 @@ static void vdpasim_set_vq_ready(struct vdpa_device *vdpa, u16 idx, bool ready)
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
spin_lock(&vdpasim->lock);
- vq->ready = ready;
- if (vq->ready)
+ if (!vq->ready) {
+ vq->ready = ready;
vdpasim_queue_ready(vdpasim, idx);
+ }
spin_unlock(&vdpasim->lock);
}
--
2.27.0
