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net: stmmac: return error if no DMA configuration is found
All drivers except pci glue layer calls stmmac_probe_config_dt. stmmac_probe_config_dt does a kzalloc dma_cfg. pci glue layer does kzalloc dma_cfg explicitly, so all current drivers does a kzalloc dma_cfg. Return an error if no DMA configuration is found, that way we can assume that the DMA configuration always exists. Signed-off-by: Niklas Cassel <niklas.cassel@axis.com> Acked-by: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1578,16 +1578,12 @@ static void stmmac_check_ether_addr(struct stmmac_priv *priv)
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*/
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static int stmmac_init_dma_engine(struct stmmac_priv *priv)
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{
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int pbl = DEFAULT_DMA_PBL, fixed_burst = 0, aal = 0;
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int mixed_burst = 0;
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int atds = 0;
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int ret = 0;
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if (priv->plat->dma_cfg) {
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pbl = priv->plat->dma_cfg->pbl;
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fixed_burst = priv->plat->dma_cfg->fixed_burst;
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mixed_burst = priv->plat->dma_cfg->mixed_burst;
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aal = priv->plat->dma_cfg->aal;
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if (!priv->plat->dma_cfg) {
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dev_err(priv->device, "DMA configuration not found\n");
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return -EINVAL;
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}
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if (priv->extend_desc && (priv->mode == STMMAC_RING_MODE))
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@ -1599,8 +1595,12 @@ static int stmmac_init_dma_engine(struct stmmac_priv *priv)
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return ret;
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}
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priv->hw->dma->init(priv->ioaddr, pbl, fixed_burst, mixed_burst,
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aal, priv->dma_tx_phy, priv->dma_rx_phy, atds);
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priv->hw->dma->init(priv->ioaddr,
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priv->plat->dma_cfg->pbl,
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priv->plat->dma_cfg->fixed_burst,
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priv->plat->dma_cfg->mixed_burst,
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priv->plat->dma_cfg->aal,
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priv->dma_tx_phy, priv->dma_rx_phy, atds);
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if (priv->synopsys_id >= DWMAC_CORE_4_00) {
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priv->rx_tail_addr = priv->dma_rx_phy +
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