diff --git a/sys/dev/axgbe/xgbe-sysctl.c b/sys/dev/axgbe/xgbe-sysctl.c
--- a/sys/dev/axgbe/xgbe-sysctl.c
+++ b/sys/dev/axgbe/xgbe-sysctl.c
@@ -515,7 +515,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -551,7 +551,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -583,7 +583,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 		
@@ -639,7 +639,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 		sys_op->rx_coalesce_usecs = pdata->rx_usecs;
@@ -770,7 +770,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 		sys_op->autoneg = pdata->phy.pause_autoneg;
@@ -868,7 +868,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 		sys_op->autoneg = pdata->phy.autoneg;
@@ -993,7 +993,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 		sys_op->rx_max_pending = XGBE_RX_DESC_CNT_MAX;
@@ -1096,7 +1096,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 		rx = min(pdata->hw_feat.rx_ch_cnt, pdata->rx_max_channel_count);
@@ -1174,7 +1174,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -1220,7 +1220,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -1256,7 +1256,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -1293,7 +1293,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -1330,7 +1330,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -1368,7 +1368,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -1405,7 +1405,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -1441,7 +1441,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -1478,7 +1478,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -1514,7 +1514,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}
 
@@ -1555,7 +1555,7 @@
 	if (req->newptr == NULL) {
 		sb = sbuf_new_for_sysctl(NULL, NULL, buf_size, req);
 		if (sb == NULL) {
-			rc = sb->s_error;
+			rc = ENOMEM;
 			return (rc);
 		}