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usb: don't use 'Yoda conditions'

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imitate nearby code about using '!value' or 'value == NULL'

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Gonglei 2014-08-11 21:00:52 +08:00 • committed by Michael Tokarev
parent 2bb0020cf9
commit d0657b2aab
3 changed files with 4 additions and 4 deletions
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2
hw/usb/hcd-ehci.c
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@ -1596,7 +1596,7 @@ static EHCIQueue *ehci_state_fetchqh(EHCIState *ehci, int async)
entry = ehci_get_fetch_addr(ehci, async);
q = ehci_find_queue_by_qh(ehci, entry, async);
if (NULL == q) {
if (q == NULL) {
q = ehci_alloc_queue(ehci, entry, async);
}