1 files changed, 18 insertions, 9 deletions

diff --git a/drivers/media/pci/cx18/cx18-fileops.c b/drivers/media/pci/cx18/cx18-fileops.c
index 76a3b4ac541e..df837408efd5 100644
--- a/drivers/media/pci/cx18/cx18-fileops.c
+++ b/drivers/media/pci/cx18/cx18-fileops.c
@@ -34,6 +34,7 @@
 #include "cx18-controls.h"
 #include "cx18-ioctl.h"
 #include "cx18-cards.h"
+#include <media/v4l2-event.h>
 
 /* This function tries to claim the stream for a specific file descriptor.
    If no one else is using this stream then the stream is claimed and
@@ -609,13 +610,16 @@ ssize_t cx18_v4l2_read(struct file *filp, char __user *buf, size_t count,
 
 unsigned int cx18_v4l2_enc_poll(struct file *filp, poll_table *wait)
 {
+	unsigned long req_events = poll_requested_events(wait);
 	struct cx18_open_id *id = file2id(filp);
 	struct cx18 *cx = id->cx;
 	struct cx18_stream *s = &cx->streams[id->type];
 	int eof = test_bit(CX18_F_S_STREAMOFF, &s->s_flags);
+	unsigned res = 0;
 
 	/* Start a capture if there is none */
-	if (!eof && !test_bit(CX18_F_S_STREAMING, &s->s_flags)) {
+	if (!eof && !test_bit(CX18_F_S_STREAMING, &s->s_flags) &&
+			(req_events & (POLLIN | POLLRDNORM))) {
 		int rc;
 
 		mutex_lock(&cx->serialize_lock);
@@ -632,21 +636,26 @@ unsigned int cx18_v4l2_enc_poll(struct file *filp, poll_table *wait)
 	if ((s->vb_type == V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
 		(id->type == CX18_ENC_STREAM_TYPE_YUV)) {
 		int videobuf_poll = videobuf_poll_stream(filp, &s->vbuf_q, wait);
+
+		if (v4l2_event_pending(&id->fh))
+			res |= POLLPRI;
                 if (eof && videobuf_poll == POLLERR)
-                        return POLLHUP;
-                else
-                        return videobuf_poll;
+			return res | POLLHUP;
+		return res | videobuf_poll;
 	}
 
 	/* add stream's waitq to the poll list */
 	CX18_DEBUG_HI_FILE("Encoder poll\n");
-	poll_wait(filp, &s->waitq, wait);
+	if (v4l2_event_pending(&id->fh))
+		res |= POLLPRI;
+	else
+		poll_wait(filp, &s->waitq, wait);
 
 	if (atomic_read(&s->q_full.depth))
-		return POLLIN | POLLRDNORM;
+		return res | POLLIN | POLLRDNORM;
 	if (eof)
-		return POLLHUP;
-	return 0;
+		return res | POLLHUP;
+	return res;
 }
 
 int cx18_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
@@ -797,7 +806,7 @@ static int cx18_serialized_open(struct cx18_stream *s, struct file *filp)
 		CX18_DEBUG_WARN("nomem on v4l2 open\n");
 		return -ENOMEM;
 	}
-	v4l2_fh_init(&item->fh, s->video_dev);
+	v4l2_fh_init(&item->fh, &s->video_dev);
 
 	item->cx = cx;
 	item->type = s->type;