linux-kernel - [PATCH] regulator: Simplify regulator_bulk_get and regulator_bulk

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Message-ID: <1329705136.3189.1.camel@phoenix>
Date:	Mon, 20 Feb 2012 10:32:16 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...com>
Subject: [PATCH] regulator: Simplify regulator_bulk_get and
 regulator_bulk_enable error paths

Start unwind from the point the error happens instead of iterating over all
consumers, then unwind code can be simpler.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/regulator/core.c |   11 ++++-------
 1 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index fecda41..37a84df 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2451,7 +2451,7 @@ int regulator_bulk_get(struct device *dev, int num_consumers,
 	return 0;
 
 err:
-	for (i = 0; i < num_consumers && consumers[i].consumer; i++)
+	while (--i >= 0)
 		regulator_put(consumers[i].consumer);
 
 	return ret;
@@ -2547,12 +2547,9 @@ int regulator_bulk_enable(int num_consumers,
 	return 0;
 
 err:
-	for (i = 0; i < num_consumers; i++)
-		if (consumers[i].ret == 0)
-			regulator_disable(consumers[i].consumer);
-		else
-			pr_err("Failed to enable %s: %d\n",
-			       consumers[i].supply, consumers[i].ret);
+	pr_err("Failed to enable %s: %d\n", consumers[i].supply, ret);
+	while (--i >= 0)
+		regulator_disable(consumers[i].consumer);
 
 	return ret;
 }
-- 
1.7.5.4



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