diff options
Diffstat (limited to 'drivers/mux/core.c')
| -rw-r--r-- | drivers/mux/core.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/mux/core.c b/drivers/mux/core.c index 2260063b0ea8..d1271c1ee23c 100644 --- a/drivers/mux/core.c +++ b/drivers/mux/core.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Multiplexer subsystem * * Copyright (C) 2017 Axentia Technologies AB * * Author: Peter Rosin <peda@axentia.se> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #define pr_fmt(fmt) "mux-core: " fmt @@ -413,6 +410,7 @@ static int of_dev_node_match(struct device *dev, const void *data) return dev->of_node == data; } +/* Note this function returns a reference to the mux_chip dev. */ static struct mux_chip *of_find_mux_chip_by_node(struct device_node *np) { struct device *dev; @@ -466,6 +464,7 @@ struct mux_control *mux_control_get(struct device *dev, const char *mux_name) (!args.args_count && (mux_chip->controllers > 1))) { dev_err(dev, "%pOF: wrong #mux-control-cells for %pOF\n", np, args.np); + put_device(&mux_chip->dev); return ERR_PTR(-EINVAL); } @@ -476,10 +475,10 @@ struct mux_control *mux_control_get(struct device *dev, const char *mux_name) if (controller >= mux_chip->controllers) { dev_err(dev, "%pOF: bad mux controller %u specified in %pOF\n", np, controller, args.np); + put_device(&mux_chip->dev); return ERR_PTR(-EINVAL); } - get_device(&mux_chip->dev); return &mux_chip->mux[controller]; } EXPORT_SYMBOL_GPL(mux_control_get); |