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authorJulian Wiedmann <jwi@linux.ibm.com>2019-02-04 17:40:06 +0100
committerDavid S. Miller <davem@davemloft.net>2019-02-04 09:43:47 -0800
commit5065b2dd3e5f9247a6c9d67974bc0472bf561b9d (patch)
tree1a33973b3f1155bf4398c9be785e84becdebc201
parentnet: cls_flower: Remove filter from mask before freeing it (diff)
downloadlinux-dev-5065b2dd3e5f9247a6c9d67974bc0472bf561b9d.tar.xz
linux-dev-5065b2dd3e5f9247a6c9d67974bc0472bf561b9d.zip
s390/qeth: release cmd buffer in error paths
Whenever we fail before/while starting an IO, make sure to release the IO buffer. Usually qeth_irq() would do this for us, but if the IO doesn't even start we obviously won't get an interrupt for it either. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/s390/net/qeth_core_main.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index e63e03143ca7..ca62e7d3ee93 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -566,6 +566,7 @@ static int __qeth_issue_next_read(struct qeth_card *card)
QETH_DBF_MESSAGE(2, "error %i on device %x when starting next read ccw!\n",
rc, CARD_DEVID(card));
atomic_set(&channel->irq_pending, 0);
+ qeth_release_buffer(channel, iob);
card->read_or_write_problem = 1;
qeth_schedule_recovery(card);
wake_up(&card->wait_q);
@@ -1127,6 +1128,8 @@ static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
rc = qeth_get_problem(card, cdev, irb);
if (rc) {
card->read_or_write_problem = 1;
+ if (iob)
+ qeth_release_buffer(iob->channel, iob);
qeth_clear_ipacmd_list(card);
qeth_schedule_recovery(card);
goto out;
@@ -1809,6 +1812,7 @@ static int qeth_idx_activate_get_answer(struct qeth_card *card,
QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
atomic_set(&channel->irq_pending, 0);
+ qeth_release_buffer(channel, iob);
wake_up(&card->wait_q);
return rc;
}
@@ -1878,6 +1882,7 @@ static int qeth_idx_activate_channel(struct qeth_card *card,
rc);
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
atomic_set(&channel->irq_pending, 0);
+ qeth_release_buffer(channel, iob);
wake_up(&card->wait_q);
return rc;
}
@@ -2058,6 +2063,7 @@ int qeth_send_control_data(struct qeth_card *card, int len,
}
reply = qeth_alloc_reply(card);
if (!reply) {
+ qeth_release_buffer(channel, iob);
return -ENOMEM;
}
reply->callback = reply_cb;