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irq/generic-chip: Provide irq_free_generic_chip()
Currently there's no way for users of irq_alloc_generic_chip() to free the allocated memory other than calling kfree() manually on the returned pointer. This may lead to errors if the internals of irq_alloc_generic_chip() ever change. Provide a routine to free the generic chip. Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Cc: linux-doc@vger.kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Link: http://lkml.kernel.org/r/1496246820-13250-2-git-send-email-brgl@bgdev.pl
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1 changed files with 6 additions and 0 deletions
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@ -22,6 +22,7 @@
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#include <linux/topology.h>
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#include <linux/wait.h>
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#include <linux/io.h>
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#include <linux/slab.h>
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#include <asm/irq.h>
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#include <asm/ptrace.h>
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@ -973,6 +974,11 @@ int __irq_alloc_domain_generic_chips(struct irq_domain *d, int irqs_per_chip,
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handler, clr, set, flags); \
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})
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static inline void irq_free_generic_chip(struct irq_chip_generic *gc)
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{
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kfree(gc);
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}
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static inline struct irq_chip_type *irq_data_get_chip_type(struct irq_data *d)
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{
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return container_of(d->chip, struct irq_chip_type, chip);
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