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authorHans Verkuil <hans.verkuil@cisco.com>2012-09-05 05:10:48 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-09-26 11:02:25 -0300
commit4f996594ceaf6c3f9bc42b40c40b0f7f87b79c86 (patch)
treef2ba0120024627256917dc05a2d7c509ac056011 /drivers/media/pci/bt8xx/bttv-driver.c
parent3f70e1f598a6be4277e71516a98457fd3bddfbd0 (diff)
downloadlinux-4f996594ceaf6c3f9bc42b40c40b0f7f87b79c86.tar.gz
[media] v4l2: make vidioc_s_crop const
Write-only ioctls should have a const argument in the ioctl op.
Do this conversion for vidioc_s_crop.
Adding const for write-only ioctls was decided during the 2012 Media Workshop.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/pci/bt8xx/bttv-driver.c')
-rw-r--r--drivers/media/pci/bt8xx/bttv-driver.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index 31b282667463..16f5ca23698c 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -2986,7 +2986,7 @@ static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
 	return 0;
 }
 
-static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
+static int bttv_s_crop(struct file *file, void *f, const struct v4l2_crop *crop)
 {
 	struct bttv_fh *fh = f;
 	struct bttv *btv = fh->btv;
@@ -3028,17 +3028,17 @@ static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
 	}
 
 	/* Min. scaled size 48 x 32. */
-	c.rect.left = clamp(crop->c.left, b_left, b_right - 48);
+	c.rect.left = clamp_t(s32, crop->c.left, b_left, b_right - 48);
 	c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
 
-	c.rect.width = clamp(crop->c.width,
+	c.rect.width = clamp_t(s32, crop->c.width,
 			     48, b_right - c.rect.left);
 
-	c.rect.top = clamp(crop->c.top, b_top, b_bottom - 32);
+	c.rect.top = clamp_t(s32, crop->c.top, b_top, b_bottom - 32);
 	/* Top and height must be a multiple of two. */
 	c.rect.top = (c.rect.top + 1) & ~1;
 
-	c.rect.height = clamp(crop->c.height,
+	c.rect.height = clamp_t(s32, crop->c.height,
 			      32, b_bottom - c.rect.top);
 	c.rect.height = (c.rect.height + 1) & ~1;