merge: http://kernellabs.com/hg/~mkrufky/bug-fix

From: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 31 insertions, 6 deletions

diff --git a/linux/drivers/media/video/bt8xx/bttv-driver.c b/linux/drivers/media/video/bt8xx/bttv-driver.c
index 622807b54..27be1694b 100644
--- a/linux/drivers/media/video/bt8xx/bttv-driver.c
+++ b/linux/drivers/media/video/bt8xx/bttv-driver.c
@@ -3180,6 +3180,7 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait)
 	struct bttv_fh *fh = file->private_data;
 	struct bttv_buffer *buf;
 	enum v4l2_field field;
+	unsigned int rc = POLLERR;
 
 	if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 		if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
@@ -3188,9 +3189,10 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait)
 	}
 
 	if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
+		mutex_lock(&fh->cap.vb_lock);
 		/* streaming capture */
 		if (list_empty(&fh->cap.stream))
-			return POLLERR;
+			goto err;
 		buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
 	} else {
 		/* read() capture */
@@ -3219,11 +3221,12 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait)
 	poll_wait(file, &buf->vb.done, wait);
 	if (buf->vb.state == VIDEOBUF_DONE ||
 	    buf->vb.state == VIDEOBUF_ERROR)
-		return POLLIN|POLLRDNORM;
-	return 0;
+		rc =  POLLIN|POLLRDNORM;
+	else
+		rc = 0;
 err:
 	mutex_unlock(&fh->cap.vb_lock);
-	return POLLERR;
+	return rc;
 }
 
 static int bttv_open(struct file *file)
@@ -4198,7 +4201,6 @@ static struct video_device *vdev_init(struct bttv *btv,
 	if (NULL == vfd)
 		return NULL;
 	*vfd = *template;
-	vfd->minor   = -1;
 	vfd->v4l2_dev = &btv->c.v4l2_dev;
 	vfd->release = video_device_release;
 	vfd->debug   = bttv_debug;
@@ -4666,7 +4668,7 @@ static int __init bttv_init_module(void)
 #endif
 	if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
 		gbuffers = 2;
-	if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF)
+	if (gbufsize > BTTV_MAX_FBUF)
 		gbufsize = BTTV_MAX_FBUF;
 	gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
 	if (bttv_verbose)
diff --git a/linux/drivers/media/video/bt8xx/bttv-i2c.c b/linux/drivers/media/video/bt8xx/bttv-i2c.c
index bf94551c3..4febaf881 100644
--- a/linux/drivers/media/video/bt8xx/bttv-i2c.c
+++ b/linux/drivers/media/video/bt8xx/bttv-i2c.c
@@ -405,6 +405,29 @@ int __devinit init_bttv_i2c(struct bttv *btv)
 	}
 	if (0 == btv->i2c_rc && i2c_scan)
 		do_i2c_scan(btv->c.v4l2_dev.name, &btv->i2c_client);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 30)
+
+	/* Instantiate the IR receiver device, if present */
+	if (0 == btv->i2c_rc) {
+		struct i2c_board_info info;
+		/* The external IR receiver is at i2c address 0x34 (0x35 for
+		   reads).  Future Hauppauge cards will have an internal
+		   receiver at 0x30 (0x31 for reads).  In theory, both can be
+		   fitted, and Hauppauge suggest an external overrides an
+		   internal.
+
+		   That's why we probe 0x1a (~0x34) first. CB
+		*/
+		const unsigned short addr_list[] = {
+			0x1a, 0x18, 0x4b, 0x64, 0x30,
+			I2C_CLIENT_END
+		};
+
+		memset(&info, 0, sizeof(struct i2c_board_info));
+		strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
+		i2c_new_probed_device(&btv->c.i2c_adap, &info, addr_list);
+	}
+#endif
 	return btv->i2c_rc;
 }