linux-kernel - [PATCH] [media] ov5645: Move an error code assignment in ov5645

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Message-ID: <4efad917-ca08-f257-e9a1-b5bcb7df2df2@users.sourceforge.net>
Date:   Wed, 14 Mar 2018 22:15:43 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-media@...r.kernel.org, Hans Verkuil <hansverk@...co.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Todor Tomov <todor.tomov@...aro.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] [media] ov5645: Move an error code assignment in
 ov5645_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 14 Mar 2018 22:02:52 +0100

Move an assignment for a specific error code so that it is stored only once
in this function implementation.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/media/i2c/ov5645.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c
index d28845f7356f..374576380fd4 100644
--- a/drivers/media/i2c/ov5645.c
+++ b/drivers/media/i2c/ov5645.c
@@ -1284,13 +1284,11 @@ static int ov5645_probe(struct i2c_client *client,
 	ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_HIGH, &chip_id_high);
 	if (ret < 0 || chip_id_high != OV5645_CHIP_ID_HIGH_BYTE) {
 		dev_err(dev, "could not read ID high\n");
-		ret = -ENODEV;
 		goto power_down;
 	}
 	ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_LOW, &chip_id_low);
 	if (ret < 0 || chip_id_low != OV5645_CHIP_ID_LOW_BYTE) {
 		dev_err(dev, "could not read ID low\n");
-		ret = -ENODEV;
 		goto power_down;
 	}
 
@@ -1300,7 +1298,6 @@ static int ov5645_probe(struct i2c_client *client,
 			      &ov5645->aec_pk_manual);
 	if (ret < 0) {
 		dev_err(dev, "could not read AEC/AGC mode\n");
-		ret = -ENODEV;
 		goto power_down;
 	}
 
@@ -1308,7 +1305,6 @@ static int ov5645_probe(struct i2c_client *client,
 			      &ov5645->timing_tc_reg20);
 	if (ret < 0) {
 		dev_err(dev, "could not read vflip value\n");
-		ret = -ENODEV;
 		goto power_down;
 	}
 
@@ -1316,7 +1312,6 @@ static int ov5645_probe(struct i2c_client *client,
 			      &ov5645->timing_tc_reg21);
 	if (ret < 0) {
 		dev_err(dev, "could not read hflip value\n");
-		ret = -ENODEV;
 		goto power_down;
 	}
 
@@ -1334,6 +1329,7 @@ static int ov5645_probe(struct i2c_client *client,
 
 power_down:
 	ov5645_s_power(&ov5645->sd, false);
+	ret = -ENODEV;
 free_entity:
 	media_entity_cleanup(&ov5645->sd.entity);
 free_ctrl:
-- 
2.16.2