bnx2x: get_ext_phy_fw_version returns NULL if not applicable

To avoid confusion, if the PHY does not have a FW (and so, no FW version) make
sure that the string is NULL.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/net/bnx2x_link.c b/drivers/net/bnx2x_link.c
index c9252498d51d..aee9fff9619a 100644
--- a/drivers/net/bnx2x_link.c
+++ b/drivers/net/bnx2x_link.c
@@ -5393,7 +5393,7 @@ u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
         struct bnx2x *bp;
         u32 ext_phy_type = 0;
         u32 spirom_ver = 0;
-        u8 status = 0 ;
+        u8 status;
 
         if (version == NULL || params == NULL)
                 return -EINVAL;
@@ -5403,6 +5403,7 @@ u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
                    offsetof(struct shmem_region,
                             port_mb[params->port].ext_phy_fw_version));
 
+        status = 0;
         /* reset the returned value to zero */
         ext_phy_type = XGXS_EXT_PHY_TYPE(params->ext_phy_config);
         switch (ext_phy_type) {
@@ -5421,7 +5422,6 @@ u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
         case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8072:
         case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073:
         case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
-        case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705:
         case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706:
         case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
                 status = bnx2x_format_ver(spirom_ver, version, len);
@@ -5432,6 +5432,8 @@ u8 bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
                 status = bnx2x_format_ver(spirom_ver, version, len);
                 break;
         case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
+        case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705:
+                version[0] = '\0';
                 break;
 
         case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE: