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From:   Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Daniel Scally <djrscally@gmail.com>,
        linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     Yong Zhi <yong.zhi@intel.com>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Bingbu Cao <bingbu.cao@intel.com>,
        Tianshu Qiu <tian.shu.qiu@intel.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Jens Axboe <axboe@kernel.dk>
Subject: [PATCH v1 1/1] media: ipu3-cio2: Drop reference on error path in cio2_bridge_connect_sensor()
Date:   Mon, 26 Jul 2021 11:40:55 +0300
Message-Id: <20210726084055.54887-1-andriy.shevchenko@linux.intel.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
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The commit 71f642833284 ("ACPI: utils: Fix reference counting in
for_each_acpi_dev_match()") moved adev assignment outside of error
path and hence made acpi_dev_put(sensor->adev) a no-op. We still
need to drop reference count on error path, and to achieve that,
replace sensor->adev by locally assigned adev.

Fixes: 71f642833284 ("ACPI: utils: Fix reference counting in for_each_acpi_dev_match()")
Depends-on: fc68f42aa737 ("ACPI: fix NULL pointer dereference")
Reported-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/media/pci/intel/ipu3/cio2-bridge.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.c b/drivers/media/pci/intel/ipu3/cio2-bridge.c
index 59a36f922675..30d29b96a339 100644
--- a/drivers/media/pci/intel/ipu3/cio2-bridge.c
+++ b/drivers/media/pci/intel/ipu3/cio2-bridge.c
@@ -226,7 +226,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
 err_free_swnodes:
 	software_node_unregister_nodes(sensor->swnodes);
 err_put_adev:
-	acpi_dev_put(sensor->adev);
+	acpi_dev_put(adev);
 	return ret;
 }
 
-- 
2.30.2