linux-kernel - [PATCH] media: s5p-mfc fix video device release double release in probe error path

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Message-Id: <1465436102-13827-1-git-send-email-shuahkh@osg.samsung.com>
Date:	Wed,  8 Jun 2016 19:35:02 -0600
From:	Shuah Khan <shuahkh@....samsung.com>
To:	kyungmin.park@...sung.com, k.debski@...sung.com,
	jtp.park@...sung.com, mchehab@....samsung.com
Cc:	Shuah Khan <shuahkh@....samsung.com>,
	linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] media: s5p-mfc fix video device release double release in probe error path

Fix Decoder and encoder video device double release in probe error path.
video_device_release(dev->vfd_dec) get called twice if decoder register
fails. Also, video_device_release(dev->vfd_enc) get called twice if encoder
register fails.

Signed-off-by: Shuah Khan <shuahkh@....samsung.com>
---
 drivers/media/platform/s5p-mfc/s5p_mfc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 6ee620e..274b4f1 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -1266,7 +1266,6 @@ static int s5p_mfc_probe(struct platform_device *pdev)
 	ret = video_register_device(dev->vfd_dec, VFL_TYPE_GRABBER, 0);
 	if (ret) {
 		v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
-		video_device_release(dev->vfd_dec);
 		goto err_dec_reg;
 	}
 	v4l2_info(&dev->v4l2_dev,
@@ -1275,7 +1274,6 @@ static int s5p_mfc_probe(struct platform_device *pdev)
 	ret = video_register_device(dev->vfd_enc, VFL_TYPE_GRABBER, 0);
 	if (ret) {
 		v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
-		video_device_release(dev->vfd_enc);
 		goto err_enc_reg;
 	}
 	v4l2_info(&dev->v4l2_dev,
-- 
2.7.4