From 8324147f38019865b29d03baf28412d2ec0bd828 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 30 Jan 2017 17:47:05 +0100 Subject: spi: fix device-node leaks Make sure to release the device-node reference taken in of_register_spi_device() on errors and when deregistering the device. Fixes: 284b01897340 ("spi: Add OF binding support for SPI busses") Signed-off-by: Johan Hovold Signed-off-by: Mark Brown --- drivers/spi/spi.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/spi/spi.c') diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 8c05f27bf642..59cb26470d70 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -621,8 +621,10 @@ void spi_unregister_device(struct spi_device *spi) if (!spi) return; - if (spi->dev.of_node) + if (spi->dev.of_node) { of_node_clear_flag(spi->dev.of_node, OF_POPULATED); + of_node_put(spi->dev.of_node); + } if (ACPI_COMPANION(&spi->dev)) acpi_device_clear_enumerated(ACPI_COMPANION(&spi->dev)); device_unregister(&spi->dev); @@ -1603,11 +1605,13 @@ of_register_spi_device(struct spi_master *master, struct device_node *nc) if (rc) { dev_err(&master->dev, "spi_device register error %s\n", nc->full_name); - goto err_out; + goto err_of_node_put; } return spi; +err_of_node_put: + of_node_put(nc); err_out: spi_dev_put(spi); return ERR_PTR(rc); -- cgit