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net/mlx5: Keep autogroups list ordered
[cascardo/linux.git]
/
drivers
/
dma
/
dmaengine.c
diff --git
a/drivers/dma/dmaengine.c
b/drivers/dma/dmaengine.c
index
8c9f45f
..
6b53526
100644
(file)
--- a/
drivers/dma/dmaengine.c
+++ b/
drivers/dma/dmaengine.c
@@
-997,6
+997,13
@@
int dma_async_device_register(struct dma_device *device)
}
chan->client_count = 0;
}
+
+ if (!chancnt) {
+ dev_err(device->dev, "%s: device has no channels!\n", __func__);
+ rc = -ENODEV;
+ goto err_out;
+ }
+
device->chancnt = chancnt;
mutex_lock(&dma_list_mutex);