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authorMichal Simek <michal.simek@xilinx.com>2018-06-21 14:49:26 +0200
committerMichal Simek <michal.simek@xilinx.com>2018-07-19 10:49:53 +0200
commit27eb7bce3943111dd70c19569b60d9a047f06811 (patch)
treea8a4cd2bbce7c294c515088f255f6a4ee82432a4 /common/command.c
parent3723324042ec92739d802604558a3ebe3d5616dc (diff)
common: command: Handle USAGE failure separately
command_ret_t enum contains 3 return values but only two are handled now. Extend cmd_process_error() and handle CMD_RET_USAGE separately. These commands are affected by this change. cmd/demo.c cmd/efi.c cmd/gpio.c cmd/qfw.c cmd/x86/fsp.c test/dm/cmd_dm.c And scripts shouldn't be affected because return value is not 0. But every command implementation can choose what it is correct to pass. I would expect that RET_USAGE is called when parameters are not correctly passed (have incorrect value, missing parameters) and RET_FAILURE when correct parameters are passed but command fails. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromum.org>
Diffstat (limited to 'common/command.c')
-rw-r--r--common/command.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/common/command.c b/common/command.c
index a4a8dc601a..2433a89e0a 100644
--- a/common/command.c
+++ b/common/command.c
@@ -547,6 +547,9 @@ enum command_ret_t cmd_process(int flag, int argc, char * const argv[],
int cmd_process_error(cmd_tbl_t *cmdtp, int err)
{
+ if (err == CMD_RET_USAGE)
+ return CMD_RET_USAGE;
+
if (err) {
printf("Command '%s' failed: Error %d\n", cmdtp->name, err);
return CMD_RET_FAILURE;