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[SCSI] iscsi: always release crypto 

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);
}