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USB: wusb: check CHID is all zeros before stopping the host 

An incorrect sizeof() resulted in only 4 (or 8) octets of the CHID being
checked instead of all 16 octets.  A randomly generated CHID had a
probability of being unable to start a WUSB host of less than 1 in
2 billion.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Julia Lawall 2009-12-17 13:57:33 +00:00 committed by Greg Kroah-Hartman
parent 319c3ea451
commit 8bc1d21776
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/wusbcore/mmc.c
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@ -263,7 +263,7 @@ int wusbhc_chid_set(struct wusbhc *wusbhc, const struct wusb_ckhdid *chid)
{
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);