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Message-Id: <1316156255-19509-1-git-send-email-julia@diku.dk> Date: Fri, 16 Sep 2011 08:57:32 +0200 From: Julia Lawall <julia@...u.dk> To: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> Cc: kernel-janitors@...r.kernel.org, Ian Campbell <ian.campbell@...rix.com>, Jan Beulich <jbeulich@...ell.com>, linux-kernel@...r.kernel.org Subject: [PATCH 1/4] drivers/block/xen-blkback/blkback.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> --- drivers/block/xen-blkback/blkback.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -u -p a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -790,7 +790,7 @@ static int __init xen_blkif_init(void) if (rc) goto failed_init; - memset(blkbk->pending_reqs, 0, sizeof(blkbk->pending_reqs)); + memset(blkbk->pending_reqs, 0, sizeof(*blkbk->pending_reqs)); INIT_LIST_HEAD(&blkbk->pending_free); spin_lock_init(&blkbk->pending_free_lock); -- 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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