diff options
Diffstat (limited to 'drivers/dma/idxd/submit.c')
| -rw-r--r-- | drivers/dma/idxd/submit.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/dma/idxd/submit.c b/drivers/dma/idxd/submit.c index df02c5c814e7..776fa81db61d 100644 --- a/drivers/dma/idxd/submit.c +++ b/drivers/dma/idxd/submit.c @@ -127,14 +127,18 @@ int idxd_submit_desc(struct idxd_wq *wq, struct idxd_desc *desc) { struct idxd_device *idxd = wq->idxd; struct idxd_irq_entry *ie = NULL; + u32 desc_flags = desc->hw->flags; void __iomem *portal; int rc; if (idxd->state != IDXD_DEV_ENABLED) return -EIO; - if (!percpu_ref_tryget_live(&wq->wq_active)) - return -ENXIO; + if (!percpu_ref_tryget_live(&wq->wq_active)) { + wait_for_completion(&wq->wq_resurrect); + if (!percpu_ref_tryget_live(&wq->wq_active)) + return -ENXIO; + } portal = idxd_wq_portal_addr(wq); @@ -149,7 +153,7 @@ int idxd_submit_desc(struct idxd_wq *wq, struct idxd_desc *desc) * Pending the descriptor to the lockless list for the irq_entry * that we designated the descriptor to. */ - if (desc->hw->flags & IDXD_OP_FLAG_RCI) { + if (desc_flags & IDXD_OP_FLAG_RCI) { ie = wq->ie; if (ie->int_handle == INVALID_INT_HANDLE) desc->hw->int_handle = ie->id; |