bus/ifpga: fix null pointer dereference in scan

Fix ifpga_scan_one() null pointer dereferences issue.

Coverity issue: 279454
Fixes: 05fa3d4a6539 ("bus/ifpga: add Intel FPGA bus library")
Cc: stable@dpdk.org
Signed-off-by: Rosen Xu <rosen.xu@intel.com>

diff --git a/drivers/bus/ifpga/ifpga_bus.c b/drivers/bus/ifpga/ifpga_bus.c
index db16173..b324872 100644 (file)
--- a/drivers/bus/ifpga/ifpga_bus.c
+++ b/drivers/bus/ifpga/ifpga_bus.c
@@ -159,7 +159,8 @@ ifpga_scan_one(struct rte_rawdev *rawdev,
                goto end;
 
        strlcpy(afu_pr_conf.bs_path, path, sizeof(afu_pr_conf.bs_path));
-       if (rawdev->dev_ops->firmware_load &&
+       if (rawdev->dev_ops &&
+               rawdev->dev_ops->firmware_load &&
                rawdev->dev_ops->firmware_load(rawdev,
                                &afu_pr_conf)){
                IFPGA_BUS_ERR("firmware load error %d\n", ret);