[dpdk-stable] [PATCH] drivers/bus/ifpga/: fix Coverity issue

[Rosen Xu <rosen.xu@intel.com>]

Fix Coverity issue: 279455, 279459 and 279454

Signed-off-by: Rosen Xu <rosen.xu@intel.com>

Fixes: 05fa3d4a6539 ("bus/ifpga: add Intel FPGA bus library")
Coverity issue: 279455, 279459 and 279454
Cc: stable@dpdk.org
---
 drivers/bus/ifpga/ifpga_bus.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/bus/ifpga/ifpga_bus.c b/drivers/bus/ifpga/ifpga_bus.c
index 45597a1..b324872 100644
--- a/drivers/bus/ifpga/ifpga_bus.c
+++ b/drivers/bus/ifpga/ifpga_bus.c
@@ -156,27 +156,30 @@ void rte_ifpga_driver_unregister(struct rte_afu_driver *driver)
 	if (rawdev->dev_ops &&
 		rawdev->dev_ops->dev_start &&
 		rawdev->dev_ops->dev_start(rawdev))
-		goto free_dev;
+		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);
-		goto free_dev;
+		goto end;
 	}
 	afu_dev->id.uuid.uuid_low  = afu_pr_conf.afu_id.uuid.uuid_low;
 	afu_dev->id.uuid.uuid_high = afu_pr_conf.afu_id.uuid.uuid_high;
 
+	rte_kvargs_free(kvlist);
+	free(path);
 	return afu_dev;
 
-free_dev:
-	free(afu_dev);
 end:
 	if (kvlist)
 		rte_kvargs_free(kvlist);
 	if (path)
 		free(path);
+	if (afu_dev)
+		free(afu_dev);
 
 	return NULL;
 }
@@ -367,7 +370,7 @@ void rte_ifpga_driver_unregister(struct rte_afu_driver *driver)
 		return -EINVAL;
 
 	afu_dev = RTE_DEV_TO_AFU(dev);
-	if (!dev)
+	if (!afu_dev)
 		return -ENOENT;
 
 	devargs = dev->devargs;
-- 
1.8.3.1