diff options
Diffstat (limited to 'drivers/dma/idxd/submit.c')
| -rw-r--r-- | drivers/dma/idxd/submit.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/dma/idxd/submit.c b/drivers/dma/idxd/submit.c index 4b514c63af15..de76fb4abac2 100644 --- a/drivers/dma/idxd/submit.c +++ b/drivers/dma/idxd/submit.c @@ -139,11 +139,15 @@ int idxd_submit_desc(struct idxd_wq *wq, struct idxd_desc *desc) void __iomem *portal; int rc; - if (idxd->state != IDXD_DEV_ENABLED) + if (idxd->state != IDXD_DEV_ENABLED) { + idxd_free_desc(wq, desc); return -EIO; + } - if (!percpu_ref_tryget_live(&wq->wq_active)) + if (!percpu_ref_tryget_live(&wq->wq_active)) { + idxd_free_desc(wq, desc); return -ENXIO; + } portal = idxd_wq_portal_addr(wq); @@ -175,8 +179,11 @@ int idxd_submit_desc(struct idxd_wq *wq, struct idxd_desc *desc) rc = enqcmds(portal, desc->hw); if (rc < 0) { percpu_ref_put(&wq->wq_active); + /* abort operation frees the descriptor */ if (ie) llist_abort_desc(wq, ie, desc); + else + idxd_free_desc(wq, desc); return rc; } } |