raw/ifpga/base: check null pointer

In init_sec_mgr(), pointer "hw" may be NULL, so "hw" should
be checked before dereferencing.

Coverity issue: 367483
Fixes: a05bd1b40bde ("raw/ifpga: add FPGA RSU APIs")

Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>

diff --git a/drivers/raw/ifpga/base/ifpga_sec_mgr.c b/drivers/raw/ifpga/base/ifpga_sec_mgr.c
index 4cf1db3..15fb5b6 100644 (file)
--- a/drivers/raw/ifpga/base/ifpga_sec_mgr.c
+++ b/drivers/raw/ifpga/base/ifpga_sec_mgr.c
@@ -610,7 +610,7 @@ int init_sec_mgr(struct ifpga_fme_hw *fme)
                smgr->rsu_status = NULL;
        }
 
-       if ((hw->pci_data->device_id == IFPGA_N3000_DID) &&
+       if (hw && (hw->pci_data->device_id == IFPGA_N3000_DID) &&
                (hw->pci_data->vendor_id == IFPGA_N3000_VID)) {
                smgr->ops = &n3000_sec_ops;
                smgr->copy_speed = IFPGA_N3000_COPY_SPEED;