From 4ea18425436e7c72716b7f8d314775f399821195 Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Tue, 29 Apr 2008 01:01:01 -0700 Subject: [PATCH] ipmi: hold ATTN until upper layer ready Hold handling of ATTN until the upper layer has reported that it is ready. Signed-off-by: Corey Minyard Cc: Patrick Schoeller Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/ipmi/ipmi_si_intf.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 4f560d0bb808..1a8c1ca90557 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -723,8 +723,11 @@ static enum si_sm_result smi_event_handler(struct smi_info *smi_info, si_sm_result = smi_info->handlers->event(smi_info->si_sm, 0); } - /* We prefer handling attn over new messages. */ - if (si_sm_result == SI_SM_ATTN) + /* + * We prefer handling attn over new messages. But don't do + * this if there is not yet an upper layer to handle anything. + */ + if (likely(smi_info->intf) && si_sm_result == SI_SM_ATTN) { unsigned char msg[2]; -- 2.20.1