diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index d7473cd5e72b151068a5c4f7e263d6a53432a6c9..89ef0c1a16429b3a0f8f30be0e50489c33bb73fb 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1186,10 +1186,11 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table,
 			err = proc_get_long(&p, &left, &val, &neg,
 					     proc_wspace_sep,
 					     sizeof(proc_wspace_sep), NULL);
-			if (err)
+			if (err || neg) {
+				err = -EINVAL;
 				break;
-			if (neg)
-				continue;
+			}
+
 			val = convmul * val / convdiv;
 			if ((min && val < *min) || (max && val > *max)) {
 				err = -EINVAL;