diff options
| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2021-04-06 10:02:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-06 11:16:55 +0200 |
| commit | 8a157d2ff104d2849c58226a1fd02365d7d60150 (patch) | |
| tree | 25039f22a517795949657bccb08a531a107ed2c8 /drivers/usb/host | |
| parent | f70d436f000101876439ce25527a9939628c9518 (diff) | |
| download | linux-8a157d2ff104d2849c58226a1fd02365d7d60150.tar.bz2 | |
xhci: check port array allocation was successful before dereferencing it
return if rhub->ports is null after rhub->ports = kcalloc_node()
Klockwork reported issue
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20210406070208.3406266-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 34d95c006751..f66815fe8482 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -2249,6 +2249,9 @@ static void xhci_create_rhub_port_array(struct xhci_hcd *xhci, return; rhub->ports = kcalloc_node(rhub->num_ports, sizeof(*rhub->ports), flags, dev_to_node(dev)); + if (!rhub->ports) + return; + for (i = 0; i < HCS_MAX_PORTS(xhci->hcs_params1); i++) { if (xhci->hw_ports[i].rhub != rhub || xhci->hw_ports[i].hcd_portnum == DUPLICATE_ENTRY) |