Re: [PATCH] staging: rtl8712: remove dead code
From: Joshua Clayton
Date: Wed Sep 30 2015 - 01:33:01 EST
On Monday, September 28, 2015 10:52:33 PM Luis de Bethencourt wrote:
> The while() loop will only exit in a return or a goto ask_for_joinbss,
> which means it will never break and execute the return after it.
> Removing return _FAIL since it is dead code.
> Signed-off-by: Luis de Bethencourt <luisbg@xxxxxxxxxxxxxxx>
> drivers/staging/rtl8712/rtl871x_mlme.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
> diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
> index fc5dbea..fbcb248 100644
> --- a/drivers/staging/rtl8712/rtl871x_mlme.c
> +++ b/drivers/staging/rtl8712/rtl871x_mlme.c
> @@ -1190,7 +1190,7 @@ int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
> - return _FAIL;
> return r8712_joinbss_cmd(adapter, pnetwork);
Yes, that line is unreachable, (no breaks, only returns and gotos to get out of the loop).
but ugh, that function is an abomination.
removing the return _FAIL does little to improve the code flow or
perhaps a nicer fix would be to change it to follow the convention
of gotos for the failure path, so instead of 5 levels of nesting,
it would flow naturally toward r8712_joinbss_cmd();
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