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USB: FHCI: avoid NULL pointer dereference

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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>
This commit is contained in:
Alexander Beregalov
2010-01-07 04:17:32 +03:00
committed by Greg Kroah-Hartman
parent 04a723ea9c
commit ae35fe9e8a
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/host/fhci-hcd.c
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@@ -242,9 +242,10 @@ err:
static void fhci_usb_free(void *lld) static void fhci_usb_free(void *lld)
{ {
struct fhci_usb *usb = lld; struct fhci_usb *usb = lld;
struct fhci_hcd *fhci = usb->fhci; struct fhci_hcd *fhci;
if (usb) { if (usb) {
fhci = usb->fhci;
fhci_config_transceiver(fhci, FHCI_PORT_POWER_OFF); fhci_config_transceiver(fhci, FHCI_PORT_POWER_OFF);
fhci_ep0_free(usb); fhci_ep0_free(usb);
kfree(usb->actual_frame); kfree(usb->actual_frame);