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Date:   Fri, 31 Aug 2018 10:00:34 -0500
From:   "Gustavo A. R. Silva" <>
To:     Corey Minyard <>, Arnd Bergmann <>,
        Greg Kroah-Hartman <>
        "Gustavo A. R. Silva" <>
Subject: [PATCH v2] ipmi: Fix NULL pointer dereference in ssif_probe

There is a potential execution path in which function ssif_info_find()
returns NULL, hence there is a NULL pointer dereference when accessing
pointer *addr_info*

Fix this by null checking *addr_info* before dereferencing it.

Addresses-Coverity-ID: 1473145 ("Explicit null dereferenced")
Fixes: e333054a91d1 ("ipmi: Fix I2C client removal in the SSIF driver")
Signed-off-by: Gustavo A. R. Silva <>
Changes in v2:
 - Fix typo in commit log.

 drivers/char/ipmi/ipmi_ssif.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index 2ff3679..764d305 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -1641,7 +1641,9 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	if (rv) {
-		addr_info->client = NULL;
+		if (addr_info)
+			addr_info->client = NULL;
 		dev_err(&client->dev, "Unable to start IPMI SSIF: %d\n", rv);

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