Add cmd_process_error() to report and process errors
U-Boot now uses errors defined in include/errno.h which are negative
integers. Commands which fail need to report the error and return 1
to indicate failure. Add this functionality in cmd_process_error().
For now this merely reports the error number. It would be possible
also to produce a helpful error message by storing the error strings
in U-Boot.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/command.c b/common/command.c
index 597ab4c..26c37f2 100644
--- a/common/command.c
+++ b/common/command.c
@@ -538,3 +538,13 @@
rc = cmd_usage(cmdtp);
return rc;
}
+
+int cmd_process_error(cmd_tbl_t *cmdtp, int err)
+{
+ if (err) {
+ printf("Command '%s' failed: Error %d\n", cmdtp->name, err);
+ return 1;
+ }
+
+ return 0;
+}