[patch 5/5] drivers/usb: correct code taking the size of a pointer

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From: Julia Lawall <julia@xxxxxxx>

sizeof(chid) is just the size of the pointer.  Change it to the size of the
referenced structure.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

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

*f(...,(T)x,...)
// </smpl>

Signed-off-by: Julia Lawall <julia@xxxxxxx>
Cc: David Vrabel <david.vrabel@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 drivers/usb/wusbcore/mmc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/usb/wusbcore/mmc.c~drivers-usb-correct-code-taking-the-size-of-a-pointer drivers/usb/wusbcore/mmc.c
--- a/drivers/usb/wusbcore/mmc.c~drivers-usb-correct-code-taking-the-size-of-a-pointer
+++ a/drivers/usb/wusbcore/mmc.c
@@ -263,7 +263,7 @@ int wusbhc_chid_set(struct wusbhc *wusbh
 {
 	int result = 0;
 
-	if (memcmp(chid, &wusb_ckhdid_zero, sizeof(chid)) == 0)
+	if (memcmp(chid, &wusb_ckhdid_zero, sizeof(*chid)) == 0)
 		chid = NULL;
 
 	mutex_lock(&wusbhc->mutex);
_
--
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