diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
index 3e43bda846b0..7af63f6276ed 100644
--- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c
@@ -1338,7 +1338,7 @@ get_nvlist(uint64_t nvl, uint64_t size, int iflag, nvlist_t **nvp)
 	if ((error = ddi_copyin((void *)(uintptr_t)nvl, packed, size,
 	    iflag)) != 0) {
 		kmem_free(packed, size);
-		return (error);
+		return (SET_ERROR(EFAULT));
 	}
 
 	if ((error = nvlist_unpack(packed, size, &list, 0)) != 0) {