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From:   Yu Kuai <yukuai3@huawei.com>
To:     <khilman@baylibre.com>
CC:     <linux-arm-kernel@lists.infradead.org>,
        <linux-amlogic@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <yukuai3@huawei.com>,
        <yi.zhang@huawei.com>, <zhangxiaoxu5@huawei.com>
Subject: [PATCH] soc: amlogic: canvas: add missing put_device() call in meson_canvas_get()
Date:   Tue, 17 Nov 2020 09:13:22 +0800
Message-ID: <20201117011322.522477-1-yukuai3@huawei.com>
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Precedence: bulk

if of_find_device_by_node() succeed, meson_canvas_get() doesn't have
a corresponding put_device(). Thus add put_device() to fix the exception
handling for this function implementation.

Fixes: commit 382f8be04551 ("soc: amlogic: canvas: Fix meson_canvas_get when probe failed")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
---
 drivers/soc/amlogic/meson-canvas.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/amlogic/meson-canvas.c b/drivers/soc/amlogic/meson-canvas.c
index c655f5f92b12..d0329ad170d1 100644
--- a/drivers/soc/amlogic/meson-canvas.c
+++ b/drivers/soc/amlogic/meson-canvas.c
@@ -72,8 +72,10 @@ struct meson_canvas *meson_canvas_get(struct device *dev)
 	 * current state, this driver probe cannot return -EPROBE_DEFER
 	 */
 	canvas = dev_get_drvdata(&canvas_pdev->dev);
-	if (!canvas)
+	if (!canvas) {
+		put_device(&canvas_pdev->dev);
 		return ERR_PTR(-EINVAL);
+	}
 
 	return canvas;
 }
-- 
2.25.4