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path: root/drivers/misc/mic/scif/scif_epd.c
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Diffstat (limited to 'drivers/misc/mic/scif/scif_epd.c')
-rw-r--r--drivers/misc/mic/scif/scif_epd.c26
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/misc/mic/scif/scif_epd.c b/drivers/misc/mic/scif/scif_epd.c
index b4bfbb08a8e3..00e5d6d66e7b 100644
--- a/drivers/misc/mic/scif/scif_epd.c
+++ b/drivers/misc/mic/scif/scif_epd.c
@@ -65,14 +65,14 @@ void scif_teardown_ep(void *endpt)
void scif_add_epd_to_zombie_list(struct scif_endpt *ep, bool eplock_held)
{
if (!eplock_held)
- spin_lock(&scif_info.eplock);
+ mutex_lock(&scif_info.eplock);
spin_lock(&ep->lock);
ep->state = SCIFEP_ZOMBIE;
spin_unlock(&ep->lock);
list_add_tail(&ep->list, &scif_info.zombie);
scif_info.nr_zombies++;
if (!eplock_held)
- spin_unlock(&scif_info.eplock);
+ mutex_unlock(&scif_info.eplock);
schedule_work(&scif_info.misc_work);
}
@@ -81,16 +81,15 @@ static struct scif_endpt *scif_find_listen_ep(u16 port)
struct scif_endpt *ep = NULL;
struct list_head *pos, *tmpq;
- spin_lock(&scif_info.eplock);
+ mutex_lock(&scif_info.eplock);
list_for_each_safe(pos, tmpq, &scif_info.listen) {
ep = list_entry(pos, struct scif_endpt, list);
if (ep->port.port == port) {
- spin_lock(&ep->lock);
- spin_unlock(&scif_info.eplock);
+ mutex_unlock(&scif_info.eplock);
return ep;
}
}
- spin_unlock(&scif_info.eplock);
+ mutex_unlock(&scif_info.eplock);
return NULL;
}
@@ -99,14 +98,17 @@ void scif_cleanup_zombie_epd(void)
struct list_head *pos, *tmpq;
struct scif_endpt *ep;
- spin_lock(&scif_info.eplock);
+ mutex_lock(&scif_info.eplock);
list_for_each_safe(pos, tmpq, &scif_info.zombie) {
ep = list_entry(pos, struct scif_endpt, list);
- list_del(pos);
- scif_info.nr_zombies--;
- kfree(ep);
+ if (scif_rma_ep_can_uninit(ep)) {
+ list_del(pos);
+ scif_info.nr_zombies--;
+ put_iova_domain(&ep->rma_info.iovad);
+ kfree(ep);
+ }
}
- spin_unlock(&scif_info.eplock);
+ mutex_unlock(&scif_info.eplock);
}
/**
@@ -137,6 +139,8 @@ void scif_cnctreq(struct scif_dev *scifdev, struct scifmsg *msg)
if (!ep)
/* Send reject due to no listening ports */
goto conreq_sendrej_free;
+ else
+ spin_lock(&ep->lock);
if (ep->backlog <= ep->conreqcnt) {
/* Send reject due to too many pending requests */