9pfuse: bug fix in error case
diff --git a/src/cmd/9pfuse/main.c b/src/cmd/9pfuse/main.c
index fa27cb9..92124a7 100644
--- a/src/cmd/9pfuse/main.c
+++ b/src/cmd/9pfuse/main.c
@@ -800,6 +800,7 @@
 	if(n < 0){
 		free(buf);
 		replyfuseerrstr(m);
+		return;
 	}
 	replyfuse(m, buf, n);
 	free(buf);