提交 ae35fe9e 编写于 作者: A Alexander Beregalov 提交者: Greg Kroah-Hartman

USB: FHCI: avoid NULL pointer dereference

Assign fhci only if usb is not NULL.
Signed-off-by: NAlexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
上级 04a723ea
......@@ -242,9 +242,10 @@ static int fhci_mem_init(struct fhci_hcd *fhci)
static void fhci_usb_free(void *lld)
{
struct fhci_usb *usb = lld;
struct fhci_hcd *fhci = usb->fhci;
struct fhci_hcd *fhci;
if (usb) {
fhci = usb->fhci;
fhci_config_transceiver(fhci, FHCI_PORT_POWER_OFF);
fhci_ep0_free(usb);
kfree(usb->actual_frame);
......
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