From: Miaoqian Lin linmq006@gmail.com
commit 038ae37c510fd57cbc543ac82db1e7b23b28557a upstream.
The reference taken by 'of_find_device_by_node()' must be released when not needed anymore. Add the corresponding 'put_device()' in the error handling paths.
Fixes: 47404757702e ("memory: mtk-smi: Add device link for smi-sub-common") Signed-off-by: Miaoqian Lin linmq006@gmail.com Link: https://lore.kernel.org/r/20220601120118.60225-1-linmq006@gmail.com Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/memory/mtk-smi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c index 86a3d34f418e..4c5154e0bf00 100644 --- a/drivers/memory/mtk-smi.c +++ b/drivers/memory/mtk-smi.c @@ -404,13 +404,16 @@ static int mtk_smi_device_link_common(struct device *dev, struct device **com_de of_node_put(smi_com_node); if (smi_com_pdev) { /* smi common is the supplier, Make sure it is ready before */ - if (!platform_get_drvdata(smi_com_pdev)) + if (!platform_get_drvdata(smi_com_pdev)) { + put_device(&smi_com_pdev->dev); return -EPROBE_DEFER; + } smi_com_dev = &smi_com_pdev->dev; link = device_link_add(dev, smi_com_dev, DL_FLAG_PM_RUNTIME | DL_FLAG_STATELESS); if (!link) { dev_err(dev, "Unable to link smi-common dev\n"); + put_device(&smi_com_pdev->dev); return -ENODEV; } *com_dev = smi_com_dev;