tx_pipe->dma_channel = knav_dma_open_channel(dev,
tx_pipe->dma_chan_name, &config);
- if (IS_ERR_OR_NULL(tx_pipe->dma_channel)) {
+ if (IS_ERR(tx_pipe->dma_channel)) {
dev_err(dev, "failed opening tx chan(%s)\n",
tx_pipe->dma_chan_name);
+ ret = PTR_ERR(tx_pipe->dma_channel);
goto err;
}
netcp->rx_channel = knav_dma_open_channel(netcp->netcp_device->device,
netcp->dma_chan_name, &config);
- if (IS_ERR_OR_NULL(netcp->rx_channel)) {
+ if (IS_ERR(netcp->rx_channel)) {
dev_err(netcp->ndev_dev, "failed opening rx chan(%s\n",
netcp->dma_chan_name);
+ ret = PTR_ERR(netcp->rx_channel);
goto fail;
}