Index: sys/kern/kern_sendfile.c
===================================================================
--- sys/kern/kern_sendfile.c
+++ sys/kern/kern_sendfile.c
@@ -591,7 +591,7 @@
 		struct sf_io *sfio;
 		vm_page_t *pa;
 		struct mbuf *mtail;
-		int nios, space, npages, rhpages;
+		int nios, space, npages, rhpages, so_error;
 
 		mtail = NULL;
 		/*
@@ -871,8 +871,9 @@
 			goto done;
 		sbytes += space + hdrlen;
 		/* pru_send stores errors after adding data to the socket here */
-		if (so->so_error) {
-			error = so->so_error;
+		so_error = so->so_error;
+		if (so_error) {
+			error = so_error;
 			so->so_error = 0;
 			goto done;
 		}