linux-kernel - [PATCH] regulator: ab8500: tidy ab8500_regulator_get

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Message-ID: <20180419100828.GA10724@mwanda>
Date:   Thu, 19 Apr 2018 13:08:28 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Lee Jones <lee.jones@...aro.org>
Cc:     Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] regulator: ab8500: tidy ab8500_regulator_get_mode()

The indenting here is confusing.

Also we don't check "ret".  That isn't likely to cause a runtime issue
because if it fails here fails then we'd probably return -EINVAL at the
end anyway.  But it does introduce a static checker warning since "val"
is only inititialized on the success path.

    drivers/regulator/ab8500.c:429 ab8500_regulator_get_mode()
    error: uninitialized symbol 'val'.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index 83dba3fbfe0c..4fab417f1803 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -425,7 +425,10 @@ static unsigned int ab8500_regulator_get_mode(struct regulator_dev *rdev)
 	if (info->mode_mask) {
 		/* Dedicated register for handling mode */
 		ret = abx500_get_register_interruptible(info->dev,
-		info->mode_bank, info->mode_reg, &val);
+							info->mode_bank,
+							info->mode_reg, &val);
+		if (ret)
+			return ret;
 		val = val & info->mode_mask;
 
 		val_normal = info->mode_val_normal;