Re: Elegant substitute for kzalloc() through #define?

[Sergei Gavrikov <sergei.gavrikov@gmail.com>]

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What's about

 #define kzalloc(size, flags) calloc(size, 1)

See calloc(3) http://linux.die.net/man/3/calloc

Sergei

On Wed, 28 Aug 2013, Max Seidenstücker wrote:

> As I am trying to touch as few source files as possible I am looking for a
> good way to substitute a call to Linux kzalloc(). This function allocates
> and zeroes the memory before returning the pointer. So a call to malloc()
> and then memset() in eCos is my approach.
> 
> How can a #define be written to do the trick, so I don't need to touch the
> source file in this area with #ifdef  __ECOS ?
> 
> struct jffs2_inode_info *f = kzalloc(sizeof(*f), GFP_KERNEL);
> if (!f)
> 	return -ENOMEM;
> 
> #define kzalloc(x,y) \
> 	malloc(x); \
> 	if (HOW_TO_MAKE_SURE_MALLOC_WAS_SUCCESSFUL) { \
> 		memset(tmp,0,x);\
> 	}
> 
> Regards
> Max Seidenstuecker
> 
> 
> 
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>