linux-kernel - [PATCH 1/4] Remove redundant return value check

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Message-Id: <20231102141135.369-1-adiupina@astralinux.ru>
Date:   Thu,  2 Nov 2023 17:11:32 +0300
From:   Alexandra Diupina <adiupina@...ralinux.ru>
To:     Hans de Goede <hdegoede@...hat.com>
Cc:     Alexandra Diupina <adiupina@...ralinux.ru>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andy Shevchenko <andy@...nel.org>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, linux-media@...r.kernel.org,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        lvc-project@...uxtesting.org
Subject: [PATCH 1/4] Remove redundant return value check

media_entity_pads_init() will not return 0 only if the
2nd parameter >= MEDIA_ENTITY_MAX_PADS (512), but 1 is
passed, so checking the return value is redundant

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: ad85094b293e ("Revert "media: staging: atomisp: Remove driver"")
Signed-off-by: Alexandra Diupina <adiupina@...ralinux.ru>
---
 drivers/staging/media/atomisp/i2c/atomisp-gc2235.c        | 4 +---
 drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c       | 6 +-----
 drivers/staging/media/atomisp/i2c/atomisp-ov2722.c        | 2 --
 drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c | 2 --
 4 files changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/media/atomisp/i2c/atomisp-gc2235.c b/drivers/staging/media/atomisp/i2c/atomisp-gc2235.c
index 9fa390fbc5f3..f10931a03285 100644
--- a/drivers/staging/media/atomisp/i2c/atomisp-gc2235.c
+++ b/drivers/staging/media/atomisp/i2c/atomisp-gc2235.c
@@ -840,9 +840,7 @@ static int gc2235_probe(struct i2c_client *client)
 	dev->ctrl_handler.lock = &dev->input_lock;
 	dev->sd.ctrl_handler = &dev->ctrl_handler;
 
-	ret = media_entity_pads_init(&dev->sd.entity, 1, &dev->pad);
-	if (ret)
-		gc2235_remove(client);
+	media_entity_pads_init(&dev->sd.entity, 1, &dev->pad);
 
 	return atomisp_register_i2c_module(&dev->sd, gcpdev, RAW_CAMERA);
 
diff --git a/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c b/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c
index 1c6643c442ef..b7a940fdbd0a 100644
--- a/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c
+++ b/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c
@@ -1581,11 +1581,7 @@ static int mt9m114_probe(struct i2c_client *client)
 
 	/* REVISIT: Do we need media controller? */
 	ret = media_entity_pads_init(&dev->sd.entity, 1, &dev->pad);
-	if (ret) {
-		mt9m114_remove(client);
-		return ret;
-	}
-	return 0;
+	return ret;
 }
 
 static const struct acpi_device_id mt9m114_acpi_match[] = {
diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c
index 6a72691ed5b7..922774293bf4 100644
--- a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c
+++ b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c
@@ -993,8 +993,6 @@ static int ov2722_probe(struct i2c_client *client)
 	dev->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
 
 	ret = media_entity_pads_init(&dev->sd.entity, 1, &dev->pad);
-	if (ret)
-		ov2722_remove(client);
 
 	return atomisp_register_i2c_module(&dev->sd, ovpdev, RAW_CAMERA);
 
diff --git a/drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c b/drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c
index 460a4e34c55b..8d5b74fb5d9c 100644
--- a/drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c
+++ b/drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c
@@ -1733,8 +1733,6 @@ static int ov5693_probe(struct i2c_client *client)
 	dev->sd.ctrl_handler = &dev->ctrl_handler;
 
 	ret = media_entity_pads_init(&dev->sd.entity, 1, &dev->pad);
-	if (ret)
-		ov5693_remove(client);
 
 	return ret;
 out_free:
-- 
2.30.2