[dpdk-dev] [PATCH v2] net/ice: fix unchecked return value

[Wenjun Wu]

Fix unchecked return values reported by coverity.

Coverity issue: 349907
Fixes: 03a05924dad0 ("net/ice: support device-specific DDP package loading")
Cc: sta...@dpdk.org

Signed-off-by: Wenjun Wu <wenjun1...@intel.com>

---
v2: modify err message; fix the issue related to that reported by coverity
---
 drivers/net/ice/ice_ethdev.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index dfd99ace9..f43b2e0b2 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -1663,8 +1663,14 @@ ice_pkg_file_search_path(struct rte_pci_device *pci_dev, 
char *pkg_file)
        pos = rte_pci_find_ext_capability(pci_dev, RTE_PCI_EXT_CAP_ID_DSN);
 
        if (pos) {
-               rte_pci_read_config(pci_dev, &dsn_low, 4, pos + 4);
-               rte_pci_read_config(pci_dev, &dsn_high, 4, pos + 8);
+               if (rte_pci_read_config(pci_dev, &dsn_low, 4, pos + 4) < 0) {
+                       PMD_INIT_LOG(ERR, "Failed to read pci config space\n");
+                       return -1;
+               }
+               if (rte_pci_read_config(pci_dev, &dsn_high, 4, pos + 8) < 0) {
+                       PMD_INIT_LOG(ERR, "Failed to read pci config space\n");
+                       return -1;
+               }
                snprintf(opt_ddp_filename, ICE_MAX_PKG_FILENAME_SIZE,
                         "ice-%08x%08x.pkg", dsn_high, dsn_low);
        } else {
@@ -1727,7 +1733,11 @@ static int ice_load_pkg(struct rte_eth_dev *dev)
        struct ice_adapter *ad =
                ICE_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
 
-       ice_pkg_file_search_path(pci_dev, pkg_file);
+       err = ice_pkg_file_search_path(pci_dev, pkg_file);
+       if (err) {
+               PMD_INIT_LOG(ERR, "failed to search file path\n");
+               return err;
+       }
 
        file = fopen(pkg_file, "rb");
        if (!file)  {
-- 
2.25.1