[PATCH v2] regulator: raa215300: Change the scope of the variables {clkin_name, xin_name}

[Biju Das <biju.das.jz@xxxxxxxxxxxxxx>]

Change the scope of the variables {clkin_name, xin_name} from global->local
to fix the below warning.

drivers/regulator/raa215300.c:42:12: sparse: sparse: symbol 'xin_name' was
not declared. Should it be static?

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202306250552.Fan9WTiN-lkp@xxxxxxxxx/
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
v1->v2:
 * Invert the second if-condition and exchange the two branches,
   to make the code flow easier to follow for the casual reader.
 * Pre-initialized clk_name to NULL and clk_name is set only when
   ret > 0.
 * RTC driver is instantiated only when there is valid clock. So replaced the
   if conditional check ret->clk_name.
 * Added Rb tag from Geert.
---
 drivers/regulator/raa215300.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/regulator/raa215300.c b/drivers/regulator/raa215300.c
index 24a1c89f5dbc..8e1a4c86b978 100644
--- a/drivers/regulator/raa215300.c
+++ b/drivers/regulator/raa215300.c
@@ -38,8 +38,6 @@
 #define RAA215300_REG_BLOCK_EN_RTC_EN	BIT(6)
 #define RAA215300_RTC_DEFAULT_ADDR	0x6f
 
-const char *clkin_name = "clkin";
-const char *xin_name = "xin";
 static struct clk *clk;
 
 static const struct regmap_config raa215300_regmap_config = {
@@ -71,8 +69,10 @@ static int raa215300_clk_present(struct i2c_client *client, const char *name)
 static int raa215300_i2c_probe(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
-	const char *clk_name = xin_name;
+	const char *clkin_name = "clkin";
 	unsigned int pmic_version, val;
+	const char *xin_name = "xin";
+	const char *clk_name = NULL;
 	struct regmap *regmap;
 	int ret;
 
@@ -114,15 +114,17 @@ static int raa215300_i2c_probe(struct i2c_client *client)
 	ret = raa215300_clk_present(client, xin_name);
 	if (ret < 0) {
 		return ret;
-	} else if (!ret) {
+	} else if (ret) {
+		clk_name = xin_name;
+	} else {
 		ret = raa215300_clk_present(client, clkin_name);
 		if (ret < 0)
 			return ret;
-
-		clk_name = clkin_name;
+		if (ret)
+			clk_name = clkin_name;
 	}
 
-	if (ret) {
+	if (clk_name) {
 		char *name = pmic_version >= 0x12 ? "isl1208" : "raa215300_a0";
 		struct device_node *np = client->dev.of_node;
 		u32 addr = RAA215300_RTC_DEFAULT_ADDR;
-- 
2.25.1