ASoC: rsnd: dma.c: tidyup rsnd_dma_probe()

This patch tidyups rsnd_dma_probe(), but there is no effect.

This is prepare for Gen4 support.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87r0va5elq.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
index b422c3bd34dec413687da2843b4dba5c2639a39a..9aca5ff791a3ee1f268bccffef5abffe394cd0ee 100644 (file)
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -885,13 +885,18 @@ int rsnd_dma_probe(struct rsnd_priv *priv)
        /*
         * for Gen2 or later
         */
-       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "audmapp");
        dmac = devm_kzalloc(dev, sizeof(*dmac), GFP_KERNEL);
-       if (!dmac || !res) {
+       if (!dmac) {
                dev_err(dev, "dma allocate failed\n");
                return 0; /* it will be PIO mode */
        }
 
+       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "audmapp");
+       if (!res) {
+               dev_err(dev, "lack of audmapp in DT\n");
+               return 0; /* it will be PIO mode */
+       }
+
        dmac->dmapp_num = 0;
        dmac->ppres  = res->start;
        dmac->ppbase = devm_ioremap_resource(dev, res);