If we fail to submit the allocated tv_vmd to tcm_vhost_submission_work,
we will leak the tv_vmd. Free tv_vmd on fail path.
Signed-off-by: Asias He <asias@xxxxxxxxxx>
---
drivers/vhost/tcm_vhost.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c
index 28c112f..210d59e 100644
--- a/drivers/vhost/tcm_vhost.c
+++ b/drivers/vhost/tcm_vhost.c
@@ -724,7 +724,7 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs,
" exceeds SCSI_MAX_VARLEN_CDB_SIZE: %d\n",
scsi_command_size(tv_cmd->tvc_cdb),
TCM_VHOST_MAX_CDB_SIZE);
- break; /* TODO */
+ goto err;
}
tv_cmd->tvc_lun = ((v_req.lun[2] << 8) | v_req.lun[3]) & 0x3FFF;
@@ -737,7 +737,7 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs,
data_direction == DMA_TO_DEVICE);
if (unlikely(ret)) {
vq_err(vq, "Failed to map iov to sgl\n");
- break; /* TODO */
+ goto err;
}
}
@@ -758,6 +758,11 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs,
}
mutex_unlock(&vq->mutex);
+ return;
+
+err:
+ vhost_scsi_free_cmd(tv_cmd);
+ mutex_unlock(&vq->mutex);
}
static void vhost_scsi_ctl_handle_kick(struct vhost_work *work)
--
1.8.1.4
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