diff options
| author | Niklas Cassel <niklas.cassel@axis.com> | 2016-12-07 17:20:03 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-12-08 21:07:10 +0300 |
| commit | 89ab75bf7253271c0ca805931105a298bc22bfdf (patch) | |
| tree | 3c4fc3caa02e1ebfcc12df284fab152f5674176b /drivers/net/ethernet/stmicro | |
| parent | 3f0dd6b79c014231e671f754a499aa017c2b955c (diff) | |
| download | linux-89ab75bf7253271c0ca805931105a298bc22bfdf.tar.xz | |
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>
Diffstat (limited to 'drivers/net/ethernet/stmicro')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 982c95213da4..14366800e5e6 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1578,16 +1578,12 @@ static void stmmac_check_ether_addr(struct stmmac_priv *priv) */ static int stmmac_init_dma_engine(struct stmmac_priv *priv) { - int pbl = DEFAULT_DMA_PBL, fixed_burst = 0, aal = 0; - int mixed_burst = 0; int atds = 0; int ret = 0; - if (priv->plat->dma_cfg) { - pbl = priv->plat->dma_cfg->pbl; - fixed_burst = priv->plat->dma_cfg->fixed_burst; - mixed_burst = priv->plat->dma_cfg->mixed_burst; - aal = priv->plat->dma_cfg->aal; + if (!priv->plat->dma_cfg) { + dev_err(priv->device, "DMA configuration not found\n"); + return -EINVAL; } if (priv->extend_desc && (priv->mode == STMMAC_RING_MODE)) @@ -1599,8 +1595,12 @@ static int stmmac_init_dma_engine(struct stmmac_priv *priv) return ret; } - priv->hw->dma->init(priv->ioaddr, pbl, fixed_burst, mixed_burst, - aal, priv->dma_tx_phy, priv->dma_rx_phy, atds); + priv->hw->dma->init(priv->ioaddr, + priv->plat->dma_cfg->pbl, + priv->plat->dma_cfg->fixed_burst, + priv->plat->dma_cfg->mixed_burst, + priv->plat->dma_cfg->aal, + priv->dma_tx_phy, priv->dma_rx_phy, atds); if (priv->synopsys_id >= DWMAC_CORE_4_00) { priv->rx_tail_addr = priv->dma_rx_phy + |