Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (255 commits)
  [media] radio-aimslab.c: Fix gcc 4.5+ bug
  [media] cx25821: Fix compilation breakage due to BKL dependency
  [media] v4l2-compat-ioctl32: fix compile warning
  [media] zoran: fix compiler warning
  [media] tda18218: fix compile warning
  [media] ngene: fix compile warning
  [media] DVB: IR support for TechnoTrend CT-3650
  [media] cx23885, cimax2.c: Fix case of two CAM insertion irq
  [media] ir-nec-decoder: fix repeat key issue
  [media] staging: se401 depends on USB
  [media] staging: usbvideo/vicam depends on USB
  [media] soc_camera: Add the ability to bind regulators to soc_camedra devices
  [media] V4L2: Add a v4l2-subdev (soc-camera) driver for OmniVision OV2640 sensor
  [media] v4l: soc-camera: switch to .unlocked_ioctl
  [media] v4l: ov772x: simplify pointer dereference
  [media] ov9640: fix OmniVision OV9640 sensor driver's priv data retrieving
  [media] ov9640: use macro to request OmniVision OV9640 sensor private data
  [media] ivtv-i2c: Fix two warnings
  [media] staging/lirc: Update lirc TODO files
  [media] cx88: Remove the obsolete i2c_adapter.id field
  ...

1 files changed, 7 insertions, 23 deletions

diff --git a/drivers/media/video/pwc/pwc-v4l.c b/drivers/media/video/pwc/pwc-v4l.c
index 7061a03f5cf..8ca4d22b438 100644
--- a/drivers/media/video/pwc/pwc-v4l.c
+++ b/drivers/media/video/pwc/pwc-v4l.c
@@ -309,7 +309,10 @@ static int pwc_vidioc_set_fmt(struct pwc_device *pdev, struct v4l2_format *f)
 	    pixelformat != V4L2_PIX_FMT_PWC2)
 		return -EINVAL;
 
-	PWC_DEBUG_IOCTL("Try to change format to: width=%d height=%d fps=%d "
+	if (pdev->iso_init)
+		return -EBUSY;
+
+	PWC_DEBUG_IOCTL("Trying to set format to: width=%d height=%d fps=%d "
 			"compression=%d snapshot=%d format=%c%c%c%c\n",
 			f->fmt.pix.width, f->fmt.pix.height, fps,
 			compression, snapshot,
@@ -318,14 +321,14 @@ static int pwc_vidioc_set_fmt(struct pwc_device *pdev, struct v4l2_format *f)
 			(pixelformat>>16)&255,
 			(pixelformat>>24)&255);
 
-	ret = pwc_try_video_mode(pdev,
+	ret = pwc_set_video_mode(pdev,
 				 f->fmt.pix.width,
 				 f->fmt.pix.height,
 				 fps,
 				 compression,
 				 snapshot);
 
-	PWC_DEBUG_IOCTL("pwc_try_video_mode(), return=%d\n", ret);
+	PWC_DEBUG_IOCTL("pwc_set_video_mode(), return=%d\n", ret);
 
 	if (ret)
 		return ret;
@@ -359,23 +362,6 @@ long pwc_video_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 
 
 	switch (cmd) {
-#ifdef CONFIG_VIDEO_V4L1_COMPAT
-		/* mmap() functions */
-		case VIDIOCGMBUF:
-		{
-			/* Tell the user program how much memory is needed for a mmap() */
-			struct video_mbuf *vm = arg;
-			int i;
-
-			memset(vm, 0, sizeof(*vm));
-			vm->size = pwc_mbufs * pdev->len_per_image;
-			vm->frames = pwc_mbufs; /* double buffering should be enough for most applications */
-			for (i = 0; i < pwc_mbufs; i++)
-				vm->offsets[i] = i * pdev->len_per_image;
-			break;
-		}
-#endif
-
 		/* V4L2 Layer */
 		case VIDIOC_QUERYCAP:
 		{
@@ -882,9 +868,7 @@ long pwc_video_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 
 		case VIDIOC_STREAMON:
 		{
-			/* WARNING: pwc_try_video_mode() called pwc_isoc_init */
-			pwc_isoc_init(pdev);
-			return 0;
+			return pwc_isoc_init(pdev);
 		}
 
 		case VIDIOC_STREAMOFF: