i2c: npcm7xx: Fix a couple of error codes in probe

The code here is accidentally returning IS_ERR() which is 1 but it
should be returning negative error codes with PTR_ERR().

Fixes: 56a1485b10 ("i2c: npcm7xx: Add Nuvoton NPCM I2C controller driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/i2c-npcm7xx.c

@@ -2239,12 +2239,12 @@ static int npcm_i2c_probe_bus(struct platform_device *pdev)
 
 	gcr_regmap = syscon_regmap_lookup_by_compatible("nuvoton,npcm750-gcr");
 	if (IS_ERR(gcr_regmap))
-		return IS_ERR(gcr_regmap);
+		return PTR_ERR(gcr_regmap);
 	regmap_write(gcr_regmap, NPCM_I2CSEGCTL, NPCM_I2CSEGCTL_INIT_VAL);
 
 	clk_regmap = syscon_regmap_lookup_by_compatible("nuvoton,npcm750-clk");
 	if (IS_ERR(clk_regmap))
-		return IS_ERR(clk_regmap);
+		return PTR_ERR(clk_regmap);
 
 	bus->reg = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(bus->reg))