[media] media: davinci: vpfe: fix build error

recent patch with commit id 4f996594ceaf6c3f9bc42b40c40b0f7f87b79c86
which makes vidioc_s_crop const, was causing a following build error.
vpfe_capture.c: In function 'vpfe_s_crop':
vpfe_capture.c:1695: error: assignment of read-only location '*crop'
vpfe_capture.c:1706: warning: passing argument 1 of
'ccdc_dev->hw_ops.set_image_window' discards qualifiers from pointer target type
vpfe_capture.c:1706: note: expected 'struct v4l2_rect *' but argument is of
type 'const struct v4l2_rect *'
make[4]: *** [drivers/media/platform/davinci/vpfe_capture.o] Error 1

Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/platform/davinci/vpfe_capture.c b/drivers/media/platform/davinci/vpfe_capture.c
index 48052cb..8be492c 100644 (file)
--- a/drivers/media/platform/davinci/vpfe_capture.c
+++ b/drivers/media/platform/davinci/vpfe_capture.c
@@ -1669,6 +1669,7 @@ static int vpfe_s_crop(struct file *file, void *priv,
                             const struct v4l2_crop *crop)
 {
        struct vpfe_device *vpfe_dev = video_drvdata(file);
+       struct v4l2_rect rect = crop->c;
        int ret = 0;
 
        v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_s_crop\n");
@@ -1684,7 +1685,7 @@ static int vpfe_s_crop(struct file *file, void *priv,
        if (ret)
                return ret;
 
-       if (crop->c.top < 0 || crop->c.left < 0) {
+       if (rect.top < 0 || rect.left < 0) {
                v4l2_err(&vpfe_dev->v4l2_dev,
                        "doesn't support negative values for top & left\n");
                ret = -EINVAL;
@@ -1692,26 +1693,26 @@ static int vpfe_s_crop(struct file *file, void *priv,
        }
 
        /* adjust the width to 16 pixel boundary */
-       crop->c.width = ((crop->c.width + 15) & ~0xf);
+       rect.width = ((rect.width + 15) & ~0xf);
 
        /* make sure parameters are valid */
-       if ((crop->c.left + crop->c.width >
+       if ((rect.left + rect.width >
                vpfe_dev->std_info.active_pixels) ||
-           (crop->c.top + crop->c.height >
+           (rect.top + rect.height >
                vpfe_dev->std_info.active_lines)) {
                v4l2_err(&vpfe_dev->v4l2_dev, "Error in S_CROP params\n");
                ret = -EINVAL;
                goto unlock_out;
        }
-       ccdc_dev->hw_ops.set_image_window(&crop->c);
-       vpfe_dev->fmt.fmt.pix.width = crop->c.width;
-       vpfe_dev->fmt.fmt.pix.height = crop->c.height;
+       ccdc_dev->hw_ops.set_image_window(&rect);
+       vpfe_dev->fmt.fmt.pix.width = rect.width;
+       vpfe_dev->fmt.fmt.pix.height = rect.height;
        vpfe_dev->fmt.fmt.pix.bytesperline =
                ccdc_dev->hw_ops.get_line_length();
        vpfe_dev->fmt.fmt.pix.sizeimage =
                vpfe_dev->fmt.fmt.pix.bytesperline *
                vpfe_dev->fmt.fmt.pix.height;
-       vpfe_dev->crop = crop->c;
+       vpfe_dev->crop = rect;
 unlock_out:
        mutex_unlock(&vpfe_dev->lock);
        return ret;