From bceb418b65b917af6d36a92ea1eaca54cafc1c2e Mon Sep 17 00:00:00 2001 From: Nishka Dasgupta Date: Mon, 19 Aug 2019 12:54:36 +0530 Subject: [PATCH] usb: dwc3: st: Add of_dev_put() in probe function In function st_dwc3_probe, variable child_pdev takes the value returned by of_find_device_by_node, which gets a device pointer but does not put it. If child_pdev is not put before the probe function returns, it may cause a reference leak. Hence put child_pdev after its last usage. Issue found with Coccinelle. Reviewed-by: Patrice Chotard Signed-off-by: Nishka Dasgupta Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-st.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c index 6f52c749cd58..c682420f25ca 100644 --- a/drivers/usb/dwc3/dwc3-st.c +++ b/drivers/usb/dwc3/dwc3-st.c @@ -274,6 +274,7 @@ static int st_dwc3_probe(struct platform_device *pdev) dwc3_data->dr_mode = usb_get_dr_mode(&child_pdev->dev); of_node_put(child); + of_dev_put(child_pdev); /* * Configure the USB port as device or host according to the static