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Date: Fri, 16 Sep 2011 08:57:35 +0200 From: Julia Lawall <julia@...u.dk> To: Chris Zankel <chris@...kel.net> Cc: kernel-janitors@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>, Eric Dumazet <eric.dumazet@...il.com>, Mike Frysinger <vapier@...too.org>, Arun Sharma <asharma@...com>, linux-kernel@...r.kernel.org Subject: [PATCH 4/4] arch/xtensa/kernel/process.c: take size of pointed value, not pointer From: Julia Lawall <julia@...u.dk> Sizeof a pointer-typed expression returns the size of the pointer, not that of the pointed data. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression *e; type T; identifier f; @@ f(...,(T)e,..., -sizeof(e) +sizeof(*e) ,...) // </smpl> Signed-off-by: Julia Lawall <julia@...u.dk> --- arch/xtensa/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -u -p a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c --- a/arch/xtensa/kernel/process.c +++ b/arch/xtensa/kernel/process.c @@ -277,7 +277,7 @@ void xtensa_elf_core_copy_regs (xtensa_g /* Don't leak any random bits. */ - memset(elfregs, 0, sizeof (elfregs)); + memset(elfregs, 0, sizeof(*elfregs)); /* Note: PS.EXCM is not set while user task is running; its * being set in regs->ps is for exception handling convenience. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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