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-rw-r--r--drivers/ntb/test/ntb_perf.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 05a870524a67..f0784e50ceb7 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -135,6 +135,7 @@ struct perf_ctx {
bool link_is_up;
struct work_struct link_cleanup;
struct delayed_work link_work;
+ wait_queue_head_t link_wq;
struct dentry *debugfs_node_dir;
struct dentry *debugfs_run;
struct dentry *debugfs_threads;
@@ -533,6 +534,7 @@ static void perf_link_work(struct work_struct *work)
goto out1;
perf->link_is_up = true;
+ wake_up(&perf->link_wq);
return;
@@ -653,7 +655,7 @@ static ssize_t debugfs_run_write(struct file *filp, const char __user *ubuf,
int node, i;
DECLARE_WAIT_QUEUE_HEAD(wq);
- if (!perf->link_is_up)
+ if (wait_event_interruptible(perf->link_wq, perf->link_is_up))
return -ENOLINK;
if (perf->perf_threads == 0)
@@ -783,6 +785,7 @@ static int perf_probe(struct ntb_client *client, struct ntb_dev *ntb)
mutex_init(&perf->run_mutex);
spin_lock_init(&perf->db_lock);
perf_setup_mw(ntb, perf);
+ init_waitqueue_head(&perf->link_wq);
INIT_DELAYED_WORK(&perf->link_work, perf_link_work);
INIT_WORK(&perf->link_cleanup, perf_link_cleanup);