linux-kernel - [PATCH v2 4/5] mfd: twl4030-power: Simplify error path

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Message-Id: <1371561480-28325-5-git-send-email-florian.vaussard@epfl.ch>
Date:	Tue, 18 Jun 2013 15:17:59 +0200
From:	Florian Vaussard <florian.vaussard@...l.ch>
To:	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	Kevin Hilman <khilman@...aro.org>, Rob Landley <rob@...dley.net>,
	Peter Ujfalusi <peter.ujfalusi@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Tero Kristo <t-kristo@...com>,
	devicetree-discuss@...ts.ozlabs.org,
	linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Florian Vaussard <florian.vaussard@...l.ch>
Subject: [PATCH v2 4/5] mfd: twl4030-power: Simplify error path

Remove unnecessary goto statements, causing duplicated if
conditions.

Signed-off-by: Florian Vaussard <florian.vaussard@...l.ch>
---
 drivers/mfd/twl4030-power.c |   38 +++++++++++++++-----------------------
 1 files changed, 15 insertions(+), 23 deletions(-)

diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
index 9f59c94..1c19d82 100644
--- a/drivers/mfd/twl4030-power.c
+++ b/drivers/mfd/twl4030-power.c
@@ -567,22 +567,27 @@ int twl4030_power_probe(struct platform_device *pdev)
 
 	err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1,
 			       TWL4030_PM_MASTER_PROTECT_KEY);
-	if (err)
-		goto unlock;
-
-	err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2,
+	err |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER,
+			       TWL4030_PM_MASTER_KEY_CFG2,
 			       TWL4030_PM_MASTER_PROTECT_KEY);
-	if (err)
-		goto unlock;
+
+	if (err) {
+		pr_err("TWL4030 Unable to unlock registers\n");
+		return err;
+	}
 
 	if (pdata) {
 		/* TODO: convert to device tree */
 		err = twl4030_power_configure_scripts(pdata);
-		if (err)
-			goto load;
+		if (err) {
+			pr_err("TWL4030 failed to load scripts\n");
+			return err;
+		}
 		err = twl4030_power_configure_resources(pdata);
-		if (err)
-			goto resource;
+		if (err) {
+			pr_err("TWL4030 failed to configure resource\n");
+			return err;
+		}
 	}
 
 	/* Board has to be wired properly to use this feature */
@@ -612,19 +617,6 @@ relock:
 	if (err)
 		pr_err("TWL4030 Unable to relock registers\n");
 	return err;
-
-unlock:
-	if (err)
-		pr_err("TWL4030 Unable to unlock registers\n");
-	return err;
-load:
-	if (err)
-		pr_err("TWL4030 failed to load scripts\n");
-	return err;
-resource:
-	if (err)
-		pr_err("TWL4030 failed to configure resource\n");
-	return err;
 }
 
 static int twl4030_power_remove(struct platform_device *pdev)
-- 
1.7.5.4

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