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s390/lcs: fix variable dereferenced before check

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[ Upstream commit 671bb35c8e746439f0ed70815968f9a4f20a8deb ]

smatch complains about
drivers/s390/net/lcs.c:1741 lcs_get_control() warn: variable dereferenced before check 'card->dev' (see line 1739)

Fixes: 27eb5ac8f0 ("[PATCH] s390: lcs driver bug fixes and improvements [1/2]")
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Alexandra Winter 2022-05-10 09:05:08 +02:00 committed by Greg Kroah-Hartman
parent 4c9ba0fed1
commit a23b0f6498
1 changed files with 4 additions and 3 deletions
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7
drivers/s390/net/lcs.c
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@ -1735,10 +1735,11 @@ lcs_get_control(struct lcs_card *card, struct lcs_cmd *cmd)
lcs_schedule_recovery(card);
break;
case LCS_CMD_STOPLAN:
pr_warn("Stoplan for %s initiated by LGW\n",
card->dev->name);
if (card->dev)
if (card->dev) {
pr_warn("Stoplan for %s initiated by LGW\n",
card->dev->name);
netif_carrier_off(card->dev);
}
break;
default:
LCS_DBF_TEXT(5, trace, "noLGWcmd");