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[SCSI] iscsi: always release crypto

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Unconditionally free crypto state, as it is always allocated during
TCP connection creation.  Without this, crypto structures leak and
crc32c module refcounts grow as connections are created and
destroyed.

Signed-off-by: Pete Wyckoff <pw@osc.edu>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Pete Wyckoff 2006-11-08 15:58:31 -06:00 committed by James Bottomley
parent 7ca63cb470
commit 534284a09b
1 changed files with 4 additions and 11 deletions
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15
drivers/scsi/iscsi_tcp.c
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@ -1816,21 +1816,14 @@ iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn)
{
struct iscsi_conn *conn = cls_conn->dd_data;
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
int digest = 0;
if (conn->hdrdgst_en || conn->datadgst_en)
digest = 1;
iscsi_tcp_release_conn(conn);
iscsi_conn_teardown(cls_conn);
/* now free tcp_conn */
if (digest) {
if (tcp_conn->tx_hash.tfm)
crypto_free_hash(tcp_conn->tx_hash.tfm);
if (tcp_conn->rx_hash.tfm)
crypto_free_hash(tcp_conn->rx_hash.tfm);
}
if (tcp_conn->tx_hash.tfm)
crypto_free_hash(tcp_conn->tx_hash.tfm);
if (tcp_conn->rx_hash.tfm)
crypto_free_hash(tcp_conn->rx_hash.tfm);
kfree(tcp_conn);
}