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Merge branch 's390-net-fixes'

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Alexandra Winter says:

====================
s390/net: Cleanup some code checker findings

clean up smatch findings in legacy code. I was not able to provoke
any real failures on my systems, but other hardware reactions,
timing conditions or compiler output, may cause failures.

There are still 2 smatch warnings left in s390/net:

drivers/s390/net/ctcm_main.c:1326 add_channel() warn: missing error code 'rc'
This one is a false positive.

drivers/s390/net/netiucv.c:1355 netiucv_check_user() warn: argument 3 to %02x specifier has type 'char'
Postponing this one, need to better understand string handling in iucv.

There are several sparse warnings left in ctcm, like:
drivers/s390/net/ctcm_fsms.c:573:9: warning: context imbalance in 'ctcm_chx_setmode' - different lock contexts for basic block
Those are mentioned in the source, no plan to rework.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2022-05-11 12:31:01 +01:00
commit 3cc5c6a782
3 changed files with 8 additions and 10 deletions
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6
drivers/s390/net/ctcm_mpc.c
View File

@ -626,8 +626,6 @@ static void mpc_rcvd_sweep_resp(struct mpcg_info *mpcginfo)
ctcm_clear_busy_do(dev);
}
kfree(mpcginfo);
return;
}
@ -1192,10 +1190,10 @@ static void ctcmpc_unpack_skb(struct channel *ch, struct sk_buff *pskb)
CTCM_FUNTAIL, dev->name);
priv->stats.rx_dropped++;
/* mpcginfo only used for non-data transfers */
kfree(mpcginfo);
if (do_debug_data)
ctcmpc_dump_skb(pskb, -8);
}
kfree(mpcginfo);
}
done:
@ -1977,7 +1975,6 @@ static void mpc_action_rcvd_xid0(fsm_instance *fsm, int event, void *arg)
}
break;
}
kfree(mpcginfo);
CTCM_PR_DEBUG("ctcmpc:%s() %s xid2:%i xid7:%i xidt_p2:%i \n",
__func__, ch->id, grp->outstanding_xid2,
@ -2038,7 +2035,6 @@ static void mpc_action_rcvd_xid7(fsm_instance *fsm, int event, void *arg)
mpc_validate_xid(mpcginfo);
break;
}
kfree(mpcginfo);
return;
}

5
drivers/s390/net/ctcm_sysfs.c
View File

@ -39,11 +39,12 @@ static ssize_t ctcm_buffer_write(struct device *dev,
struct ctcm_priv *priv = dev_get_drvdata(dev);
int rc;
ndev = priv->channel[CTCM_READ]->netdev;
if (!(priv && priv->channel[CTCM_READ] && ndev)) {
if (!(priv && priv->channel[CTCM_READ] &&
priv->channel[CTCM_READ]->netdev)) {
CTCM_DBF_TEXT(SETUP, CTC_DBF_ERROR, "bfnondev");
return -ENODEV;
}
ndev = priv->channel[CTCM_READ]->netdev;
rc = kstrtouint(buf, 0, &bs1);
if (rc)

7
drivers/s390/net/lcs.c
View File

@ -1736,10 +1736,11 @@ 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");