i40e: avoid null pointer dereference
authorHeinrich Schuchardt <xypron.glpk@gmx.de>
Tue, 17 May 2016 20:41:33 +0000 (22:41 +0200)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Fri, 22 Jul 2016 07:07:02 +0000 (00:07 -0700)
commitcd956722167ba4fdba9c1ce3eed251b04ea2e10f
tree0f11a3eca675b9921a2a31f8c7704224d202d04e
parentd95a93a9b71677a43f967a1b7986decab84b7765
i40e: avoid null pointer dereference

In function i40e_debug_aq parameter desc is assumed to be
possibly NULL. Do not dereference it before checking the
value.

Fixes: f905dd62be88 ("i40e/i40evf: add max buf len to aq debug print helper")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
drivers/net/ethernet/intel/i40e/i40e_common.c