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| H A D | taskstats.c | diff 37167485302c8876cb0303af113696e88c2945aa Wed Dec 06 22:36:55 CST 2006 Oleg Nesterov <oleg@tv-sign.ru> [PATCH] taskstats: cleanup reply assembling
Thomas Graf wrote:
>
> nla_nest_start() may return NULL, either rely on prepare_reply() to be
> correct and BUG() on failure or do proper error handling for all
> functions.
nla_put() in taskstat.c can fail only if the 'size' argument of alloc_skb()
was not right. This is a kernel bug, we should not hide it. So add 'BUG()'
on error path and check for 'na == NULL'.
> genlmsg_cancel() is only required in error paths for dumping
> procedures.
So we can remove 'genlmsg_cancel()' calls and 'void *reply' (saves 227 bytes).
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Jay Lan <jlan@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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