linux-kernel - [PATCH 1/2] clk: sprd: Use IS_ERR() to validate the return value of syscon_regmap_lookup_by

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Message-Id: <b7fbe8776703b9d637ab82ad4724353b359f1d04.1569555841.git.baolin.wang@linaro.org>
Date:   Fri, 27 Sep 2019 11:50:53 +0800
From:   Baolin Wang <baolin.wang@...aro.org>
To:     mturquette@...libre.com, sboyd@...nel.org
Cc:     orsonzhai@...il.com, baolin.wang@...aro.org, zhang.lyra@...il.com,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] clk: sprd: Use IS_ERR() to validate the return value of syscon_regmap_lookup_by_phandle()

The syscon_regmap_lookup_by_phandle() will never return NULL, thus use
IS_ERR() to validate the return value instead of IS_ERR_OR_NULL().

Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
---
 drivers/clk/sprd/common.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/sprd/common.c b/drivers/clk/sprd/common.c
index 9d56eac..7ad5ba2 100644
--- a/drivers/clk/sprd/common.c
+++ b/drivers/clk/sprd/common.c
@@ -46,7 +46,7 @@ int sprd_clk_regmap_init(struct platform_device *pdev,
 
 	if (of_find_property(node, "sprd,syscon", NULL)) {
 		regmap = syscon_regmap_lookup_by_phandle(node, "sprd,syscon");
-		if (IS_ERR_OR_NULL(regmap)) {
+		if (IS_ERR(regmap)) {
 			pr_err("%s: failed to get syscon regmap\n", __func__);
 			return PTR_ERR(regmap);
 		}
-- 
1.7.9.5