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| author | Asias He <asias@redhat.com> | 2013-04-10 15:06:14 +0800 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-04-11 01:48:27 -0700 |
| commit | 7ea206cf3b06704cf2bfc9c9c395094b24dc44a2 (patch) | |
| tree | a270c2a06611ddd9d062ef01ed5df54fb911e752 /drivers/vhost | |
| parent | f6da51c3ef07c593a410551af4cad093e2fbe755 (diff) | |
| download | linux-7ea206cf3b06704cf2bfc9c9c395094b24dc44a2.tar.gz linux-7ea206cf3b06704cf2bfc9c9c395094b24dc44a2.tar.bz2 linux-7ea206cf3b06704cf2bfc9c9c395094b24dc44a2.zip | |
tcm_vhost: Fix tv_cmd leak in vhost_scsi_handle_vq
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@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/tcm_vhost.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c index 28c112f23830..210d59e222fc 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) |