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s390/qeth: fix error handling for isolation mode cmds 

Current(?) OSA devices also store their cmd-specific return codes for
SET_ACCESS_CONTROL cmds into the top-level cmd->hdr.return_code.
So once we added stricter checking for the top-level field a while ago,
none of the error logic that rolls back the user's configuration to its
old state is applied any longer.

For this specific cmd, go back to the old model where we peek into the
cmd structure even though the top-level field indicated an error.

Fixes: 686c97ee29 ("s390/qeth: fix error handling in adapter command callbacks")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Wiedmann 2020-06-17 16:54:52 +02:00 committed by David S. Miller
parent f3c7a6e0e5
commit e2dfcfba00
1 changed files with 1 additions and 4 deletions
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5
drivers/s390/net/qeth_core_main.c
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@ -4544,9 +4544,6 @@ static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
int fallback = *(int *)reply->param;
QETH_CARD_TEXT(card, 4, "setaccb");
if (cmd->hdr.return_code)
return -EIO;
qeth_setadpparms_inspect_rc(cmd);
access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
QETH_CARD_TEXT_(card, 2, "rc=%d",
@ -4556,7 +4553,7 @@ static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%#x) on device %x: %#x\n",
access_ctrl_req->subcmd_code, CARD_DEVID(card),
cmd->data.setadapterparms.hdr.return_code);
switch (cmd->data.setadapterparms.hdr.return_code) {
switch (qeth_setadpparms_inspect_rc(cmd)) {
case SET_ACCESS_CTRL_RC_SUCCESS:
if (card->options.isolation == ISOLATION_MODE_NONE) {
dev_info(&card->gdev->dev,