mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
20332ff376
Surprisingly devres_destroy() doesn't call the destructor for the resource it is destroying, use the newly added devres_release() instead to fix this. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
/*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/clk.h>
|
|
#include <linux/device.h>
|
|
#include <linux/export.h>
|
|
#include <linux/gfp.h>
|
|
|
|
static void devm_clk_release(struct device *dev, void *res)
|
|
{
|
|
clk_put(*(struct clk **)res);
|
|
}
|
|
|
|
struct clk *devm_clk_get(struct device *dev, const char *id)
|
|
{
|
|
struct clk **ptr, *clk;
|
|
|
|
ptr = devres_alloc(devm_clk_release, sizeof(*ptr), GFP_KERNEL);
|
|
if (!ptr)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
clk = clk_get(dev, id);
|
|
if (!IS_ERR(clk)) {
|
|
*ptr = clk;
|
|
devres_add(dev, ptr);
|
|
} else {
|
|
devres_free(ptr);
|
|
}
|
|
|
|
return clk;
|
|
}
|
|
EXPORT_SYMBOL(devm_clk_get);
|
|
|
|
static int devm_clk_match(struct device *dev, void *res, void *data)
|
|
{
|
|
struct clk **c = res;
|
|
if (!c || !*c) {
|
|
WARN_ON(!c || !*c);
|
|
return 0;
|
|
}
|
|
return *c == data;
|
|
}
|
|
|
|
void devm_clk_put(struct device *dev, struct clk *clk)
|
|
{
|
|
int ret;
|
|
|
|
ret = devres_release(dev, devm_clk_release, devm_clk_match, clk);
|
|
|
|
WARN_ON(ret);
|
|
}
|
|
EXPORT_SYMBOL(devm_clk_put);
|