This is a note to let you know that I've just added the patch titled usb: dwc3: qcom: Add missing DWC3 OF node refcount decrement to the 5.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: usb-dwc3-qcom-add-missing-dwc3-of-node-refcount-decrement.patch and it can be found in the queue-5.11 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 1cffb1c66499a9db9a735473778abf8427d16287 Mon Sep 17 00:00:00 2001 From: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx> Date: Fri, 12 Feb 2021 23:55:19 +0300 Subject: usb: dwc3: qcom: Add missing DWC3 OF node refcount decrement From: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx> commit 1cffb1c66499a9db9a735473778abf8427d16287 upstream. of_get_child_by_name() increments the reference counter of the OF node it managed to find. So after the code is done using the device node, the refcount must be decremented. Add missing of_node_put() invocation then to the dwc3_qcom_of_register_core() method, since DWC3 OF node is being used only there. Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver") Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20210212205521.14280-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx Cc: stable <stable@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/usb/dwc3/dwc3-qcom.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -639,16 +639,19 @@ static int dwc3_qcom_of_register_core(st ret = of_platform_populate(np, NULL, NULL, dev); if (ret) { dev_err(dev, "failed to register dwc3 core - %d\n", ret); - return ret; + goto node_put; } qcom->dwc3 = of_find_device_by_node(dwc3_np); if (!qcom->dwc3) { + ret = -ENODEV; dev_err(dev, "failed to get dwc3 platform device\n"); - return -ENODEV; } - return 0; +node_put: + of_node_put(dwc3_np); + + return ret; } static int dwc3_qcom_probe(struct platform_device *pdev) Patches currently in stable-queue which might be from Sergey.Semin@xxxxxxxxxxxxxxxxxxxx are queue-5.11/usb-dwc3-qcom-add-missing-dwc3-of-node-refcount-decrement.patch queue-5.11/mips-kernel-reserve-exception-base-early-to-prevent-.patch