From 11da3403e91c9f510495c75d07750b6ac3c3b2e7 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Fri, 24 Oct 2025 10:02:57 -0600 Subject: doc: usage: Add general rule for `$?` For nearly all commands in U-Boot the '?' variable is handled the same way with 0 meaning success, 1 meaning any failure. Explain this in the general rules section of the cmdline documentation (with a link to a counter example) and then remove the redundant wording from most commands. We retain a section about the return value in a number of places where we are doing something such as always returning a specific value or we have useful additional information to go along with the normal return codes. Signed-off-by: Tom Rini Reviewed-by: Heinrich Schuchardt --- doc/usage/cmd/blkcache.rst | 6 ------ 1 file changed, 6 deletions(-) (limited to 'doc/usage/cmd/blkcache.rst') diff --git a/doc/usage/cmd/blkcache.rst b/doc/usage/cmd/blkcache.rst index 0329261ba9a..764a4903ca0 100644 --- a/doc/usage/cmd/blkcache.rst +++ b/doc/usage/cmd/blkcache.rst @@ -69,9 +69,3 @@ Configuration ------------- The blkcache command is only available if CONFIG_CMD_BLOCK_CACHE=y. - -Return code ------------ - -If the command succeeds, the return code $? is set 0 (true). In case of an -error the return code is set to 1 (false). -- cgit v1.2.3