net: octeontx2: NULL check before dereference

In rvu_af_init if the code fails to allocate memory for nix_af it will
take the error path with nix_af == NULL which will dereference nix_af.
Add the appropriate NULL check.

This issue was found by Smatch.

Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>

diff --git a/drivers/net/octeontx2/rvu_af.c b/drivers/net/octeontx2/rvu_af.c
index 0d3a9ff..7bdfbc5 100644 (file)
--- a/drivers/net/octeontx2/rvu_af.c
+++ b/drivers/net/octeontx2/rvu_af.c
@@ -114,7 +114,7 @@ struct nix_af *rvu_af_init(struct rvu_af *rvu_af)
        return nix_af;
 
 error:
-       if (nix_af->npa_af) {
+       if (nix_af && nix_af->npa_af) {
                free(nix_af->npa_af);
                memset(nix_af, 0, sizeof(*nix_af));
        }