Re: [PATCH] scsi: ufs: ufs-mediatek: add put_device() after of_find_device_by_node()

From: Peter Wang
Date: Thu Nov 11 2021 - 00:41:34 EST



On 11/10/21 6:51 PM, cgel.zte@xxxxxxxxx wrote:
From: Ye Guojin <ye.guojin@xxxxxxxxxx>

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.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Ye Guojin <ye.guojin@xxxxxxxxxx>
---
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 fc5b214347b3..5393b5c9dd9c 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -1189,6 +1189,7 @@ 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);

Thanks for fix this missing.
Reviewed-by: Peter Wang <peter.wang@xxxxxxxxxxxx>

if (!link) {
dev_notice(dev, "add reset device_link fail\n");
goto skip_reset;