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 `$?` For nearly all commands in U-Boot the '?' variable is handled the same way with 0 meaning success, 1 meaning any failure. Explain this in the general rules section of the cmdline documentation (with a link to a counter example) and then remove the redundant wording from most commands. We retain a section about the return value in a number of places where we are doing something such as always returning a specific value or we have useful additional information to go along with the normal return codes. Signed-off-by: Tom Rini Reviewed-by: Heinrich Schuchardt --- doc/usage/cmd/scmi.rst | 7 ------- 1 file changed, 7 deletions(-) (limited to 'doc/usage/cmd/scmi.rst') diff --git a/doc/usage/cmd/scmi.rst b/doc/usage/cmd/scmi.rst index 9591cdc07a5..c6e80a56a60 100644 --- a/doc/usage/cmd/scmi.rst +++ b/doc/usage/cmd/scmi.rst @@ -119,11 +119,4 @@ Configuration The scmi command is only available if CONFIG_CMD_SCMI=y. Default n because this command is mainly for debug purpose. -Return value ------------- - -The return value ($?) is set to 0 if the operation succeeded, -1 if the operation failed or -1 if the operation failed due to -a syntax error. - .. _`SCMI specification`: https://developer.arm.com/documentation/den0056/e/?lang=en -- cgit v1.2.3