[PATCH] v4l2-dev.c: show which events are requested by poll()
DORMANTno replies
From: Hans Verkuil <hidden>
Date: 2021-03-11 13:06:20
Subsystem:
media input infrastructure (v4l/dvb), the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
This helps debugging poll problems. Signed-off-by: Hans Verkuil <redacted> ---
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index b6a72d297775..7d0edf3530be 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c@@ -350,8 +350,9 @@ static __poll_t v4l2_poll(struct file *filp, struct poll_table_struct *poll) res = vdev->fops->poll(filp, poll); } if (vdev->dev_debug & V4L2_DEV_DEBUG_POLL) - dprintk("%s: poll: %08x\n", - video_device_node_name(vdev), res); + dprintk("%s: poll: %08x %08x\n", + video_device_node_name(vdev), res, + poll_requested_events(poll)); return res; }