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From: Daniel Scheller <d.scheller.oss@gmail.com>
To: linux-media@vger.kernel.org, mchehab@kernel.org,
	mchehab@s-opensource.com
Subject: [PATCH 6/8] [media] ddbridge: fix deinit order in case of failure in ddb_init()
Date: Sun, 17 Dec 2017 16:40:47 +0100	[thread overview]
Message-ID: <20171217154049.1125-7-d.scheller.oss@gmail.com> (raw)
In-Reply-To: <20171217154049.1125-1-d.scheller.oss@gmail.com>

From: Daniel Scheller <d.scheller@gmx.net>

In ddb_init(), the deinitialization sequence isn't correct when handling
errors, and could even lead to a memleak depending on where things failed.
Fix the deinit order.

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
---
 drivers/media/pci/ddbridge/ddbridge-core.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/media/pci/ddbridge/ddbridge-core.c b/drivers/media/pci/ddbridge/ddbridge-core.c
index 07f3e37a0fca..548b7047ca09 100644
--- a/drivers/media/pci/ddbridge/ddbridge-core.c
+++ b/drivers/media/pci/ddbridge/ddbridge-core.c
@@ -3273,7 +3273,7 @@ int ddb_init(struct ddb *dev)
 	ddb_init_boards(dev);
 
 	if (ddb_i2c_init(dev) < 0)
-		goto fail;
+		goto fail1;
 	ddb_ports_init(dev);
 	if (ddb_buffers_alloc(dev) < 0) {
 		dev_info(dev->dev, "Could not allocate buffer memory\n");
@@ -3291,14 +3291,14 @@ int ddb_init(struct ddb *dev)
 	return 0;
 
 fail3:
-	ddb_ports_detach(dev);
 	dev_err(dev->dev, "fail3\n");
-	ddb_ports_release(dev);
+	ddb_ports_detach(dev);
+	ddb_buffers_free(dev);
 fail2:
 	dev_err(dev->dev, "fail2\n");
-	ddb_buffers_free(dev);
+	ddb_ports_release(dev);
 	ddb_i2c_release(dev);
-fail:
+fail1:
 	dev_err(dev->dev, "fail1\n");
 	return -1;
 }
-- 
2.13.6

  parent reply	other threads:[~2017-12-17 15:41 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-17 15:40 [PATCH 0/8] ddbridge improvements and cleanups Daniel Scheller
2017-12-17 15:40 ` [PATCH 1/8] [media] ddbridge: unregister I2C tuner client before detaching fe's Daniel Scheller
2017-12-17 15:40 ` [PATCH 2/8] [media] ddbridge: fix resources cleanup for CI hardware Daniel Scheller
2017-12-17 15:40 ` [PATCH 3/8] [media] ddbridge: deduplicate calls to dvb_ca_en50221_init() Daniel Scheller
2017-12-17 15:40 ` [PATCH 4/8] [media] ddbridge: move CI detach code to ddbridge-ci.c Daniel Scheller
2017-12-17 15:40 ` [PATCH 5/8] [media] ddbridge: completely tear down input resources on failure Daniel Scheller
2017-12-17 15:40 ` Daniel Scheller [this message]
2017-12-17 15:40 ` [PATCH 7/8] [media] ddbridge: detach first input if the second one failed to init Daniel Scheller
2017-12-17 15:40 ` [PATCH 8/8] [media] ddbridge: improve ddb_ports_attach() failure handling Daniel Scheller
2017-12-17 16:00 ` [PATCH 0/8] ddbridge improvements and cleanups Daniel Scheller

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