linux-kernel - [PATCH 9/12] drivers/staging: Correct size given to memset

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Date:	Wed, 9 Dec 2009 20:25:04 +0100 (CET)
From:	Julia Lawall <julia@...u.dk>
To:	Greg Kroah-Hartman <gregkh@...e.de>, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH 9/12] drivers/staging: Correct size given to memset

From: Julia Lawall <julia@...u.dk>

Memset should be given the size of the structure, not the size of the pointer.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
T *x;
expression E;
@@

memset(x, E, sizeof(
+ *
 x))
// </smpl>

Signed-off-by: Julia Lawall <julia@...u.dk>

---
 drivers/staging/wlan-ng/prism2fw.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -u -p a/drivers/staging/wlan-ng/prism2fw.c b/drivers/staging/wlan-ng/prism2fw.c
--- a/drivers/staging/wlan-ng/prism2fw.c
+++ b/drivers/staging/wlan-ng/prism2fw.c
@@ -439,7 +439,7 @@ void free_chunks(imgchunk_t *fchunk, uns
 		}
 	}
 	*nfchunks = 0;
-	memset(fchunk, 0, sizeof(fchunk));
+	memset(fchunk, 0, sizeof(*fchunk));
 
 }
 
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