linux-kernel - [PATCH AUTOSEL for 4.9 017/281] ipmi_ssif: unlock on allocation failure

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Date:   Mon, 19 Mar 2018 15:58:09 +0000
From:   Sasha Levin <Alexander.Levin@...rosoft.com>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
CC:     Dan Carpenter <dan.carpenter@...cle.com>,
        Corey Minyard <cminyard@...sta.com>,
        Sasha Levin <Alexander.Levin@...rosoft.com>
Subject: [PATCH AUTOSEL for 4.9 017/281] ipmi_ssif: unlock on allocation
 failure

From: Dan Carpenter <dan.carpenter@...cle.com>

[ Upstream commit cf9806f32ef63b745f2486e0dbb2ac21f4ca44f0 ]

We should unlock and re-enable IRQs if this allocation fails.

Fixes: 259307074bfc ("ipmi: Add SMBus interface driver (SSIF) ")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Corey Minyard <cminyard@...sta.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 drivers/char/ipmi/ipmi_ssif.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index 510fc104bcdc..f11c1c7e84c6 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -409,6 +409,7 @@ static void start_event_fetch(struct ssif_info *ssif_info, unsigned long *flags)
 	msg = ipmi_alloc_smi_msg();
 	if (!msg) {
 		ssif_info->ssif_state = SSIF_NORMAL;
+		ipmi_ssif_unlock_cond(ssif_info, flags);
 		return;
 	}
 
@@ -431,6 +432,7 @@ static void start_recv_msg_fetch(struct ssif_info *ssif_info,
 	msg = ipmi_alloc_smi_msg();
 	if (!msg) {
 		ssif_info->ssif_state = SSIF_NORMAL;
+		ipmi_ssif_unlock_cond(ssif_info, flags);
 		return;
 	}
 
-- 
2.14.1