X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=drivers%2Fnet%2Fnfp%2Fnfpcore%2Fnfp-common%2Fnfp_cppat.h;fp=drivers%2Fnet%2Fnfp%2Fnfpcore%2Fnfp-common%2Fnfp_cppat.h;h=538f882bf2201ebcef67f4a75b3a4fda3923b12b;hb=8d53e9f3c6001dcb2865f6e894da5b54e1418f88;hp=6e380cca0ea1051554865e82c4e352aa0d3c73ab;hpb=e2bea7436061ca2e7e14bfcfdc5870f2555c3965;p=deb_dpdk.git

diff --git a/drivers/net/nfp/nfpcore/nfp-common/nfp_cppat.h b/drivers/net/nfp/nfpcore/nfp-common/nfp_cppat.h
index 6e380cca..538f882b 100644
--- a/drivers/net/nfp/nfpcore/nfp-common/nfp_cppat.h
+++ b/drivers/net/nfp/nfpcore/nfp-common/nfp_cppat.h
@@ -368,6 +368,9 @@ _nfp6000_encode_mu(uint64_t *addr, int dest_island, int mode, int addr40,
 	isld[1] = isld1;
 	locality_lsb = _nfp6000_cppat_mu_locality_lsb(mode, addr40);
 
+	if (locality_lsb < 0)
+		return NFP_ERRNO(EINVAL);
+
 	if (((*addr >> locality_lsb) & 3) == _NIC_NFP6000_MU_LOCALITY_DIRECT)
 		da = 1;
 	else