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 my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-linus branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.
If you have any questions about this process, please let me know.
From 2d0a347ccb21363ccf7e0c009ff2e525329a3a56 Mon Sep 17 00:00:00 2001
From: Serge Semin Sergey.Semin@baikalelectronics.ru Date: Fri, 12 Feb 2021 23:55:19 +0300 Subject: usb: dwc3: qcom: Add missing DWC3 OF node refcount decrement
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@baikalelectronics.ru Link: https://lore.kernel.org/r/20210212205521.14280-1-Sergey.Semin@baikalelectron... Cc: stable stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/dwc3/dwc3-qcom.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 730e8d6a2aa6..fcaf04483ad0 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -653,16 +653,19 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) 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 struct platform_device *