USB: FHCI: avoid NULL pointer dereference

Assign fhci only if usb is not NULL.

Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c
index 0951818ef93b..78e7c3cfcb72 100644
--- a/drivers/usb/host/fhci-hcd.c
+++ b/drivers/usb/host/fhci-hcd.c
@@ -242,9 +242,10 @@ err:
 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);