bootconfig: Fix missing return check of xbc_node_compose_key function
The function `xbc_show_list should` handle the keys during the composition. Even the errors returned by the compose function. Instead of removing the `ret` variable, it should save the value and show the exact error. This missing variable is causing a compilation issue also. Link: https://lkml.kernel.org/r/163077087861.222577.12884543474750968146.stgit@devnote2 Fixes: e5efaeb8 ("bootconfig: Support mixing a value and subkeys under a key") Signed-off-by: Julio Faracco <jcfaracco@gmail.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: stable@vger.kernel.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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