lkml.org 
[lkml]   [2007]   [Jan]   [8]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateMon, 8 Jan 2007 00:56:22 -0800 (PST)
FromAmit Choudhary <>
SubjectRe: [PATCH] include/linux/slab.h: new KFREE() macro.
--- Sumit Narayan <talk2sumit@gmail.com> wrote:
> Asking for KFREE is as silly as asking for a macro to check if kmalloc
> succeeded for a pointer, else return ENOMEM.
> 
> #define CKMALLOC(p,x) \
>    do {   \
>        p = kmalloc(x, GFP_KERNEL); \
>        if(!p) return -ENOMEM; \
>     } while(0)
> 

There are bugs with this approach. This introduces error path leaks. If you have allocated some
memory earlier, then you got to free them.

-Amit

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2007-01-08 09:59    [from the cache]
©2003-2008