linux-kernel - [PATCH 4.4 171/312] [media] am437x-vpfe: fix an uninitialized variable bug

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Message-Id: <20200508123136.527536560@linuxfoundation.org>
Date:   Fri,  8 May 2020 14:32:42 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Carpenter <dan.carpenter@...cle.com>,
        "Lad, Prabhakar" <prabhakar.csengg@...il.com>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Mauro Carvalho Chehab <mchehab@....samsung.com>
Subject: [PATCH 4.4 171/312] [media] am437x-vpfe: fix an uninitialized variable bug

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

commit e4bccada44c177cde31b9a236b7dfd7f76d403ed upstream.

If we are doing V4L2_FIELD_NONE then "ret" is used uninitialized.

Fixes: 417d2e507edc ('[media] media: platform: add VPFE capture driver support for AM437X')

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@...il.com>
Signed-off-by: Hans Verkuil <hans.verkuil@...co.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@....samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/media/platform/am437x/am437x-vpfe.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/platform/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -1047,7 +1047,7 @@ static int vpfe_get_ccdc_image_format(st
 static int vpfe_config_ccdc_image_format(struct vpfe_device *vpfe)
 {
 	enum ccdc_frmfmt frm_fmt = CCDC_FRMFMT_INTERLACED;
-	int ret;
+	int ret = 0;
 
 	vpfe_dbg(2, vpfe, "vpfe_config_ccdc_image_format\n");