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device property: Add cleanup.h based fwnode_handle_put() scope based cleanup.

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[ Upstream commit 59ed5e2d50 ]

Useful where the fwnode_handle was obtained from a call such as
fwnode_find_reference() as it will safely do nothing if IS_ERR() is true
and will automatically release the reference on the variable leaving
scope.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20240217164249.921878-3-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Stable-dep-of: 61cbfb5368 ("iio: adc: ad7124: fix DT configuration parsing")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonathan Cameron 2024-02-17 16:42:36 +00:00 committed by Greg Kroah-Hartman
parent 6d1dc55b5b
commit fce8373d31
1 changed files with 3 additions and 0 deletions
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3
include/linux/property.h
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@ -11,6 +11,7 @@
#define _LINUX_PROPERTY_H_ #define _LINUX_PROPERTY_H_
#include <linux/bits.h> #include <linux/bits.h>
#include <linux/cleanup.h>
#include <linux/fwnode.h> #include <linux/fwnode.h>
#include <linux/stddef.h> #include <linux/stddef.h>
#include <linux/types.h> #include <linux/types.h>
@ -175,6 +176,8 @@ struct fwnode_handle *device_get_named_child_node(const struct device *dev,
struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode); struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode);
void fwnode_handle_put(struct fwnode_handle *fwnode); void fwnode_handle_put(struct fwnode_handle *fwnode);
DEFINE_FREE(fwnode_handle, struct fwnode_handle *, fwnode_handle_put(_T))
int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index); int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index);
int fwnode_irq_get_byname(const struct fwnode_handle *fwnode, const char *name); int fwnode_irq_get_byname(const struct fwnode_handle *fwnode, const char *name);