linux-kernel - [PATCH 5.10 162/717] mfd: stmfx: Fix dev_err_probe() call in stmfx_chip

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Date:   Mon, 28 Dec 2020 13:42:40 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Amelie Delaunay <amelie.delaunay@...com>,
        Lee Jones <lee.jones@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 162/717] mfd: stmfx: Fix dev_err_probe() call in stmfx_chip_init()

From: Amelie Delaunay <amelie.delaunay@...com>

[ Upstream commit d75846ed08e6f4135ec73778575c34d9c0ace993 ]

'ret' may be 0 so, dev_err_probe() should be called only when 'ret' is
an error code.

Fixes: 41c9c06c491a ("mfd: stmfx: Simplify with dev_err_probe()")
Signed-off-by: Amelie Delaunay <amelie.delaunay@...com>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/mfd/stmfx.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/mfd/stmfx.c b/drivers/mfd/stmfx.c
index 5e680bfdf5c90..988e2ba6dd0f3 100644
--- a/drivers/mfd/stmfx.c
+++ b/drivers/mfd/stmfx.c
@@ -329,11 +329,11 @@ static int stmfx_chip_init(struct i2c_client *client)
 
 	stmfx->vdd = devm_regulator_get_optional(&client->dev, "vdd");
 	ret = PTR_ERR_OR_ZERO(stmfx->vdd);
-	if (ret == -ENODEV) {
-		stmfx->vdd = NULL;
-	} else {
-		return dev_err_probe(&client->dev, ret,
-				     "Failed to get VDD regulator\n");
+	if (ret) {
+		if (ret == -ENODEV)
+			stmfx->vdd = NULL;
+		else
+			return dev_err_probe(&client->dev, ret, "Failed to get VDD regulator\n");
 	}
 
 	if (stmfx->vdd) {
-- 
2.27.0