From: Yu Kuai yukuai3@huawei.com
commit 83a43ff80a566de8718dfc6565545a0080ec1fb5 upstream.
if of_find_device_by_node() succeed, usbmisc_get_init_data() doesn't have a corresponding put_device(). Thus add put_device() to fix the exception handling for this function implementation.
Fixes: ef12da914ed6 ("usb: chipidea: imx: properly check for usbmisc") Signed-off-by: Yu Kuai yukuai3@huawei.com Cc: stable stable@vger.kernel.org Link: https://lore.kernel.org/r/20201117011430.642589-1-yukuai3@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/chipidea/ci_hdrc_imx.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -127,9 +127,13 @@ static struct imx_usbmisc_data *usbmisc_ misc_pdev = of_find_device_by_node(args.np); of_node_put(args.np);
- if (!misc_pdev || !platform_get_drvdata(misc_pdev)) + if (!misc_pdev) return ERR_PTR(-EPROBE_DEFER);
+ if (!platform_get_drvdata(misc_pdev)) { + put_device(&misc_pdev->dev); + return ERR_PTR(-EPROBE_DEFER); + } data->dev = &misc_pdev->dev;
if (of_find_property(np, "disable-over-current", NULL))