cmd_test: evaluate to false without any arguments

This emulates bash:
$ if test; then echo yes; else echo no; fi
no

Currently, the code sets expr = -1 in this case, which gets mapped to
0 (true) at the end of do_test() by the logical -> shell exit code
conversion.

Signed-off-by: Stephen Warren <swarren@nvidia.com>

diff --git a/common/cmd_test.c b/common/cmd_test.c
index 0149d7edfa46133c3967d997a061b87c915fc75e..f1b15c9a734de1c74f9b99392cec8f43fea8ea52 100644 (file)
--- a/common/cmd_test.c
+++ b/common/cmd_test.c
@@ -93,7 +93,7 @@ static int do_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 
        left = argc - 1;
        ap = argv + 1;
-       expr = -1;
+       expr = 0;
        last_unop = OP_INVALID;
        last_binop = OP_INVALID;
        last_expr = -1;