release/5.2.37/clk-sprd-Use-IS_ERR-to-validate-the-return-value-of-.patch

From fe9d15443e732ed50354c730c67f549c36b0fce5 Mon Sep 17 00:00:00 2001
From: Baolin Wang <baolin.wang@linaro.org>
Date: Tue, 8 Oct 2019 15:41:38 +0800
Subject: [PATCH] clk: sprd: Use IS_ERR() to validate the return value of
 syscon_regmap_lookup_by_phandle()

commit 9629dbdabd1983ef53f125336e1d62d77b1620f9 upstream.

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().

Fixes: d41f59fd92f2 ("clk: sprd: Add common infrastructure")
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Link: https://lkml.kernel.org/r/1995139bee5248ff3e9d46dc715968f212cfc4cc.1570520268.git.baolin.wang@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

diff --git a/drivers/clk/sprd/common.c b/drivers/clk/sprd/common.c
index 8bdab1c3013b..c9b777592b2c 100644
--- a/drivers/clk/sprd/common.c
+++ b/drivers/clk/sprd/common.c
@@ -45,7 +45,7 @@ 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);
 		}
-- 
2.7.4