On Wed, Jun 4, 2014 at 6:32 AM, Mikko Perttunen [off-list ref] wrote:

This adds support for the integrated AHCI-compliant Serial ATA
controller present on the NVIDIA Tegra124 system-on-chip.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
---

[...]

+static int tegra_ahci_probe(struct platform_device *pdev)
+{
+       const struct of_device_id *match;
+       struct ahci_host_priv *hpriv;
+       struct tegra_ahci_priv *tegra;
+       int ret;
+
+       match = of_match_device(tegra_ahci_of_match, &pdev->dev);

This is not needed.

+       if (!match)
+               return -EINVAL;
+