spi: tegra20: Simplify with dev_err_probe()

Common pattern of handling deferred probe can be simplified with
dev_err_probe().  Less code and the error value gets printed.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200901152713.18629-11-krzk@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index a07b72e..a081076 100644 (file)
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -600,13 +600,9 @@ static int tegra_slink_init_dma_param(struct tegra_slink_data *tspi,
        struct dma_slave_config dma_sconfig;
 
        dma_chan = dma_request_chan(tspi->dev, dma_to_memory ? "rx" : "tx");
-       if (IS_ERR(dma_chan)) {
-               ret = PTR_ERR(dma_chan);
-               if (ret != -EPROBE_DEFER)
-                       dev_err(tspi->dev,
-                               "Dma channel is not available: %d\n", ret);
-               return ret;
-       }
+       if (IS_ERR(dma_chan))
+               return dev_err_probe(tspi->dev, PTR_ERR(dma_chan),
+                                    "Dma channel is not available\n");
 
        dma_buf = dma_alloc_coherent(tspi->dev, tspi->dma_buf_size,
                                &dma_phys, GFP_KERNEL);