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authorMike Christie <michaelc@cs.wisc.edu>2006-09-01 00:09:34 +0200
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-09-02 20:37:40 +0200
commite648f63c6520d6e572573149c16a64d2c5ad7ec5 (patch)
tree4561ce970213236ec2c3ee732a053a8ae5917e99
parent[SCSI] libiscsi: check that command ptr is set before accessing it (diff)
downloadlinux-e648f63c6520d6e572573149c16a64d2c5ad7ec5.tar.xz
linux-e648f63c6520d6e572573149c16a64d2c5ad7ec5.zip
[SCSI] libiscsi: don't call into lld to cleanup task
In the normal IO path we should not be calling back into the LLD since the LLD will have cleaned up the task before or after calling complete pdu. For the fail_command path we still need to do this to force the cleanup. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
-rw-r--r--drivers/scsi/libiscsi.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 12b5c1800740..c542d0e95e68 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -213,12 +213,8 @@ static void iscsi_get_ctask(struct iscsi_cmd_task *ctask)
static void __iscsi_put_ctask(struct iscsi_cmd_task *ctask)
{
- struct iscsi_conn *conn = ctask->conn;
-
- if (atomic_dec_and_test(&ctask->refcount)) {
- conn->session->tt->cleanup_cmd_task(conn, ctask);
+ if (atomic_dec_and_test(&ctask->refcount))
iscsi_complete_command(ctask);
- }
}
static void iscsi_put_ctask(struct iscsi_cmd_task *ctask)
@@ -1129,10 +1125,13 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
sc = ctask->sc;
if (!sc)
return;
+
+ conn->session->tt->cleanup_cmd_task(conn, ctask);
iscsi_ctask_mtask_cleanup(ctask);
sc->result = err;
sc->resid = sc->request_bufflen;
+ /* release ref from queuecommand */
__iscsi_put_ctask(ctask);
}