hush: fix "while false; ..." exitcode; add testsuites

1 files changed, 3 insertions, 1 deletions

diff --git a/shell/hush.c b/shell/hush.c
index a74fe4730..5b2f188cd 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -2305,8 +2305,10 @@ static int run_list(struct pipe *pi)
 #endif
 #if ENABLE_HUSH_LOOPS
                 if (rword == RES_WHILE) {
-                        if (rcode)
+                        if (rcode) {
+                                rcode = 0; /* "while false; do...done" - exitcode 0 */
                                 goto check_jobs_and_break;
+                        }
                 }
                 if (rword == RES_UNTIL) {
                         if (!rcode) {