linux-kernel - [PATCH 3.16 069/133] regulator: da9063: Return an error code on probe failure

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Message-ID: <lsq.1511315893.805555481@decadent.org.uk>
Date:   Wed, 22 Nov 2017 01:58:13 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Dan Carpenter" <dan.carpenter@...cle.com>,
        "Mark Brown" <broonie@...nel.org>
Subject: [PATCH 3.16 069/133] regulator: da9063: Return an error code on
 probe failure

3.16.51-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@...cle.com>

commit b6615659827839f3031c6bd4c1599c3c705778ac upstream.

If "regl_pdata->n_regulators == 0" is true then we accidentally return
PTR_ERR(<some_valid_pointer>) instead of an error code.  I've changed it
to return -ENODEV instead.

Fixes: 69ca3e58d178 ("regulator: da9063: Add Dialog DA9063 voltage regulators support.")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/regulator/da9063-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/regulator/da9063-regulator.c
+++ b/drivers/regulator/da9063-regulator.c
@@ -739,7 +739,7 @@ static int da9063_regulator_probe(struct
 	if (IS_ERR(regl_pdata) || regl_pdata->n_regulators == 0) {
 		dev_err(&pdev->dev,
 			"No regulators defined for the platform\n");
-		return PTR_ERR(regl_pdata);
+		return -ENODEV;
 	}
 
 	/* Find regulators set for particular device model */