ASoC: rcar: fix return value check in rsnd_gen1_probe()

In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR(), and also remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 4 insertions, 13 deletions

diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c
index 5e4ae0da4352..61232cd9908f 100644
--- a/sound/soc/sh/rcar/gen.c
+++ b/sound/soc/sh/rcar/gen.c
@@ -150,25 +150,16 @@ static int rsnd_gen1_probe(struct platform_device *pdev,
         sru_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_SRU);
         adg_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_ADG);
         ssi_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_SSI);
-        if (!sru_res ||
-            !adg_res ||
-            !ssi_res) {
-                dev_err(dev, "Not enough SRU/SSI/ADG platform resources.\n");
-                return -ENODEV;
-        }
-
-        gen->ops = &rsnd_gen1_ops;
 
         gen->base[RSND_GEN1_SRU] = devm_ioremap_resource(dev, sru_res);
         gen->base[RSND_GEN1_ADG] = devm_ioremap_resource(dev, adg_res);
         gen->base[RSND_GEN1_SSI] = devm_ioremap_resource(dev, ssi_res);
-        if (!gen->base[RSND_GEN1_SRU] ||
-            !gen->base[RSND_GEN1_ADG] ||
-            !gen->base[RSND_GEN1_SSI]) {
-                dev_err(dev, "SRU/SSI/ADG ioremap failed\n");
+        if (IS_ERR(gen->base[RSND_GEN1_SRU]) ||
+            IS_ERR(gen->base[RSND_GEN1_ADG]) ||
+            IS_ERR(gen->base[RSND_GEN1_SSI]))
                 return -ENODEV;
-        }
 
+        gen->ops = &rsnd_gen1_ops;
         rsnd_gen1_reg_map_init(gen);
 
         dev_dbg(dev, "Gen1 device probed\n");