linux-kernel - [PATCH AUTOSEL 5.15 20/68] scsi: ufs: ufs-mediatek: Add put_device() after of_find_device_by

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Date:   Tue, 30 Nov 2021 09:46:16 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Ye Guojin <ye.guojin@....com.cn>, Zeal Robot <zealci@....com.cn>,
        Peter Wang <peter.wang@...iatek.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Sasha Levin <sashal@...nel.org>, stanley.chu@...iatek.com,
        jejb@...ux.ibm.com, matthias.bgg@...il.com,
        linux-scsi@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH AUTOSEL 5.15 20/68] scsi: ufs: ufs-mediatek: Add put_device() after of_find_device_by_node()

From: Ye Guojin <ye.guojin@....com.cn>

[ Upstream commit cc03facb1c4248997592fc683518c00cc257db1a ]

This was found by coccicheck:

./drivers/scsi/ufs/ufs-mediatek.c, 211, 1-7, ERROR missing put_device;
call of_find_device_by_node on line 1185, but without a corresponding
object release within this function.

Link: https://lore.kernel.org/r/20211110105133.150171-1-ye.guojin@zte.com.cn
Reported-by: Zeal Robot <zealci@....com.cn>
Reviewed-by: Peter Wang <peter.wang@...iatek.com>
Signed-off-by: Ye Guojin <ye.guojin@....com.cn>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/scsi/ufs/ufs-mediatek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 80b3545dd17d6..ecc503171db6b 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -1102,6 +1102,7 @@ static int ufs_mtk_probe(struct platform_device *pdev)
 	}
 	link = device_link_add(dev, &reset_pdev->dev,
 		DL_FLAG_AUTOPROBE_CONSUMER);
+	put_device(&reset_pdev->dev);
 	if (!link) {
 		dev_notice(dev, "add reset device_link fail\n");
 		goto skip_reset;
-- 
2.33.0