[PATCH 3/3] common/cnxk: check for error code in MAC address set

[Nithin Dabilpuram]

Check for mbox error code in MAC address set.
Fixes: 313cc41830ec ("common/cnxk: support NIX MAC operations")

Signed-off-by: Nithin Dabilpuram <ndabilpu...@marvell.com>
---
 drivers/common/cnxk/roc_nix_mac.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/common/cnxk/roc_nix_mac.c 
b/drivers/common/cnxk/roc_nix_mac.c
index e2e87be525..2d1c29dd66 100644
--- a/drivers/common/cnxk/roc_nix_mac.c
+++ b/drivers/common/cnxk/roc_nix_mac.c
@@ -84,7 +84,7 @@ roc_nix_mac_addr_set(struct roc_nix *roc_nix, const uint8_t 
addr[])
        struct cgx_mac_addr_set_or_get *req, *rsp;
        struct dev *dev = &nix->dev;
        struct mbox *mbox = mbox_get(dev->mbox);
-       int rc;
+       int rc = -ENOSPC;
 
        if (roc_nix_is_vf_or_sdp(roc_nix)) {
                rc = NIX_ERR_OP_NOTSUP;
@@ -97,6 +97,9 @@ roc_nix_mac_addr_set(struct roc_nix *roc_nix, const uint8_t 
addr[])
        }
 
        req = mbox_alloc_msg_cgx_mac_addr_set(mbox);
+       if (req == NULL)
+               goto exit;
+
        req->index = nix->dmac_flt_idx;
        mbox_memcpy(req->mac_addr, addr, PLT_ETHER_ADDR_LEN);
 
-- 
2.25.1