[PATCH] introduce and use kzalloc
This patch introduces a kzalloc wrapper and converts kernel/ to use it. It saves a little program text. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds
parent
640e803376
commit
dd3927105b
18
mm/slab.c
18
mm/slab.c
@ -2558,24 +2558,18 @@ void kmem_cache_free(kmem_cache_t *cachep, void *objp)
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EXPORT_SYMBOL(kmem_cache_free);
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/**
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* kcalloc - allocate memory for an array. The memory is set to zero.
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* @n: number of elements.
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* @size: element size.
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* kzalloc - allocate memory. The memory is set to zero.
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* @size: how many bytes of memory are required.
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* @flags: the type of memory to allocate.
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*/
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void *kcalloc(size_t n, size_t size, unsigned int __nocast flags)
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void *kzalloc(size_t size, unsigned int __nocast flags)
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{
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void *ret = NULL;
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if (n != 0 && size > INT_MAX / n)
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return ret;
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ret = kmalloc(n * size, flags);
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void *ret = kmalloc(size, flags);
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if (ret)
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memset(ret, 0, n * size);
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memset(ret, 0, size);
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return ret;
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}
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EXPORT_SYMBOL(kcalloc);
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EXPORT_SYMBOL(kzalloc);
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/**
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* kfree - free previously allocated memory
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