mfd: arizona: Fix formating/style issues in arizona_apply_hardware_patch

In preparation for some refactoring fixup some minor style, formating
and code clarity issues.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/arizona-core.c

@@ -264,20 +264,20 @@ static void arizona_disable_reset(struct arizona *arizona)
 	}
 }
 
-static int arizona_apply_hardware_patch(struct arizona* arizona)
+static int wm5102_apply_hardware_patch(struct arizona *arizona)
 {
 	unsigned int fll, sysclk;
 	int ret, err;
 
 	/* Cache existing FLL and SYSCLK settings */
 	ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &fll);
-	if (ret != 0) {
+	if (ret) {
 		dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
 			ret);
 		return ret;
 	}
 	ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, &sysclk);
-	if (ret != 0) {
+	if (ret) {
 		dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
 			ret);
 		return ret;
@@ -286,7 +286,7 @@ static int arizona_apply_hardware_patch(struct arizona* arizona)
 	/* Start up SYSCLK using the FLL in free running mode */
 	ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
 			ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
-	if (ret != 0) {
+	if (ret) {
 		dev_err(arizona->dev,
 			"Failed to start FLL in freerunning mode: %d\n",
 			ret);
@@ -295,36 +295,36 @@ static int arizona_apply_hardware_patch(struct arizona* arizona)
 	ret = arizona_poll_reg(arizona, 25, ARIZONA_INTERRUPT_RAW_STATUS_5,
 			       ARIZONA_FLL1_CLOCK_OK_STS,
 			       ARIZONA_FLL1_CLOCK_OK_STS);
-	if (ret != 0) {
+	if (ret) {
 		ret = -ETIMEDOUT;
 		goto err_fll;
 	}
 
 	ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
-	if (ret != 0) {
+	if (ret) {
 		dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
 		goto err_fll;
 	}
 
 	/* Start the write sequencer and wait for it to finish */
 	ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
-			ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
-	if (ret != 0) {
+			   ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
+	if (ret) {
 		dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
 			ret);
 		goto err_sysclk;
 	}
 	ret = arizona_poll_reg(arizona, 5, ARIZONA_WRITE_SEQUENCER_CTRL_1,
 			       ARIZONA_WSEQ_BUSY, 0);
-	if (ret != 0) {
+	if (ret) {
 		regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
-				ARIZONA_WSEQ_ABORT);
+			     ARIZONA_WSEQ_ABORT);
 		ret = -ETIMEDOUT;
 	}
 
 err_sysclk:
 	err = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, sysclk);
-	if (err != 0) {
+	if (err) {
 		dev_err(arizona->dev,
 			"Failed to re-apply old SYSCLK settings: %d\n",
 			err);
@@ -332,16 +332,13 @@ static int arizona_apply_hardware_patch(struct arizona* arizona)
 
 err_fll:
 	err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, fll);
-	if (err != 0) {
+	if (err) {
 		dev_err(arizona->dev,
 			"Failed to re-apply old FLL settings: %d\n",
 			err);
 	}
 
-	if (ret != 0)
-		return ret;
-	else
-		return err;
+	return ret ?: err;
 }
 
 static int wm5102_clear_write_sequencer(struct arizona *arizona)
@@ -407,8 +404,8 @@ static int arizona_runtime_resume(struct device *dev)
 			goto err;
 		}
 
-		ret = arizona_apply_hardware_patch(arizona);
-		if (ret != 0) {
+		ret = wm5102_apply_hardware_patch(arizona);
+		if (ret) {
 			dev_err(arizona->dev,
 				"Failed to apply hardware patch: %d\n",
 				ret);
@@ -924,8 +921,8 @@ int arizona_dev_init(struct arizona *arizona)
 
 		switch (arizona->type) {
 		case WM5102:
-			ret = arizona_apply_hardware_patch(arizona);
-			if (ret != 0) {
+			ret = wm5102_apply_hardware_patch(arizona);
+			if (ret) {
 				dev_err(arizona->dev,
 					"Failed to apply hardware patch: %d\n",
 					ret);