diff options
Diffstat (limited to 'drivers/usb/host/ehci-mem.c')
| -rw-r--r-- | drivers/usb/host/ehci-mem.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c index bdb29e61805..8816d09903d 100644 --- a/drivers/usb/host/ehci-mem.c +++ b/drivers/usb/host/ehci-mem.c @@ -64,9 +64,8 @@ static inline void ehci_qtd_free (struct ehci_hcd *ehci, struct ehci_qtd *qtd) } -static void qh_destroy (struct kref *kref) +static void qh_destroy(struct ehci_qh *qh) { - struct ehci_qh *qh = container_of(kref, struct ehci_qh, kref); struct ehci_hcd *ehci = qh->ehci; /* clean qtds first, and know this is not linked */ @@ -90,7 +89,7 @@ static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, gfp_t flags) return qh; memset (qh, 0, sizeof *qh); - kref_init(&qh->kref); + qh->refcount = 1; qh->ehci = ehci; qh->qh_dma = dma; // INIT_LIST_HEAD (&qh->qh_list); @@ -112,13 +111,15 @@ static struct ehci_qh *ehci_qh_alloc (struct ehci_hcd *ehci, gfp_t flags) /* to share a qh (cpu threads, or hc) */ static inline struct ehci_qh *qh_get (struct ehci_qh *qh) { - kref_get(&qh->kref); + WARN_ON(!qh->refcount); + qh->refcount++; return qh; } static inline void qh_put (struct ehci_qh *qh) { - kref_put(&qh->kref, qh_destroy); + if (!--qh->refcount) + qh_destroy(qh); } /*-------------------------------------------------------------------------*/ |