linux-kernel - [PATCH v2] media: tw686x: Fix an error handling path in tw686x

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Date:   Mon, 20 Jun 2022 07:31:53 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Zheyu Ma <zheyuma97@...il.com>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        linux-media@...r.kernel.org
Subject: [PATCH v2] media: tw686x: Fix an error handling path in tw686x_probe()

The commit in Fixes: is incomplete. It has moved some code in the probe but
not all error handling paths have been updated.

Now, if request_irq() fails, we must release some resources.

Fixes: c8946454ed96 ("media: tw686x: Register the irq at the end of probe")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
v2: Fix a typo in the log message
    Fix a typo in the label s/868/686/
---
 drivers/media/pci/tw686x/tw686x-core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/pci/tw686x/tw686x-core.c b/drivers/media/pci/tw686x/tw686x-core.c
index 384d38754a4b..af83ebf8eea4 100644
--- a/drivers/media/pci/tw686x/tw686x-core.c
+++ b/drivers/media/pci/tw686x/tw686x-core.c
@@ -337,12 +337,15 @@ static int tw686x_probe(struct pci_dev *pci_dev,
 			  dev->name, dev);
 	if (err < 0) {
 		dev_err(&pci_dev->dev, "unable to request interrupt\n");
-		goto iounmap;
+		goto tw686x_free;
 	}
 
 	pci_set_drvdata(pci_dev, dev);
 	return 0;
 
+tw686x_free:
+	tw686x_video_free(dev);
+	tw686x_audio_free(dev);
 iounmap:
 	pci_iounmap(pci_dev, dev->mmio);
 free_region:
-- 
2.34.1