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drivers/tty: add error handling for pcmcia_loop_config

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When pcmcia_loop_config fails, the lack of error-handling code may
cause unexpected results.

This patch adds error-handling code after calling pcmcia_loop_config.

Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhouyang Jia 2018-06-12 12:36:25 +08:00 committed by Greg Kroah-Hartman
parent be70874498
commit 85c634e919
1 changed files with 4 additions and 2 deletions
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6
drivers/tty/serial/8250/serial_cs.c
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@ -638,8 +638,10 @@ static int serial_config(struct pcmcia_device *link)
(link->has_func_id) &&
(link->socket->pcmcia_pfc == 0) &&
((link->func_id == CISTPL_FUNCID_MULTI) ||
(link->func_id == CISTPL_FUNCID_SERIAL)))
pcmcia_loop_config(link, serial_check_for_multi, info);
(link->func_id == CISTPL_FUNCID_SERIAL))) {
if (pcmcia_loop_config(link, serial_check_for_multi, info))
goto failed;
}
/*
* Apply any multi-port quirk.