[media] videodev2: Set vb2_rect's width and height as unsigned

As discussed on the media summit 2013, there is no reason for the width
and height to be signed.

Therefore this patch is an attempt to convert those fields from __s32 to
__u32.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi> (documentation and smiapp)
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

10 files changed, 79 insertions, 69 deletions

diff --git a/drivers/media/i2c/mt9m032.c b/drivers/media/i2c/mt9m032.c
index 846b15f0bf6..85ec3bacdf1 100644
--- a/drivers/media/i2c/mt9m032.c
+++ b/drivers/media/i2c/mt9m032.c
@@ -459,13 +459,15 @@ static int mt9m032_set_pad_crop(struct v4l2_subdev *subdev,
 			  MT9M032_COLUMN_START_MAX);
 	rect.top = clamp(ALIGN(crop->rect.top, 2), MT9M032_ROW_START_MIN,
 			 MT9M032_ROW_START_MAX);
-	rect.width = clamp(ALIGN(crop->rect.width, 2), MT9M032_COLUMN_SIZE_MIN,
-			   MT9M032_COLUMN_SIZE_MAX);
-	rect.height = clamp(ALIGN(crop->rect.height, 2), MT9M032_ROW_SIZE_MIN,
-			    MT9M032_ROW_SIZE_MAX);
-
-	rect.width = min(rect.width, MT9M032_PIXEL_ARRAY_WIDTH - rect.left);
-	rect.height = min(rect.height, MT9M032_PIXEL_ARRAY_HEIGHT - rect.top);
+	rect.width = clamp_t(unsigned int, ALIGN(crop->rect.width, 2),
+			     MT9M032_COLUMN_SIZE_MIN, MT9M032_COLUMN_SIZE_MAX);
+	rect.height = clamp_t(unsigned int, ALIGN(crop->rect.height, 2),
+			      MT9M032_ROW_SIZE_MIN, MT9M032_ROW_SIZE_MAX);
+
+	rect.width = min_t(unsigned int, rect.width,
+			   MT9M032_PIXEL_ARRAY_WIDTH - rect.left);
+	rect.height = min_t(unsigned int, rect.height,
+			    MT9M032_PIXEL_ARRAY_HEIGHT - rect.top);
 
 	__crop = __mt9m032_get_pad_crop(sensor, fh, crop->which);
 
diff --git a/drivers/media/i2c/mt9p031.c b/drivers/media/i2c/mt9p031.c
index 1c2303d18bf..e5ddf47030f 100644
--- a/drivers/media/i2c/mt9p031.c
+++ b/drivers/media/i2c/mt9p031.c
@@ -519,11 +519,13 @@ static int mt9p031_set_format(struct v4l2_subdev *subdev,
 
 	/* Clamp the width and height to avoid dividing by zero. */
 	width = clamp_t(unsigned int, ALIGN(format->format.width, 2),
-			max(__crop->width / 7, MT9P031_WINDOW_WIDTH_MIN),
+			max_t(unsigned int, __crop->width / 7,
+			      MT9P031_WINDOW_WIDTH_MIN),
 			__crop->width);
 	height = clamp_t(unsigned int, ALIGN(format->format.height, 2),
-			max(__crop->height / 8, MT9P031_WINDOW_HEIGHT_MIN),
-			__crop->height);
+			 max_t(unsigned int, __crop->height / 8,
+			       MT9P031_WINDOW_HEIGHT_MIN),
+			 __crop->height);
 
 	hratio = DIV_ROUND_CLOSEST(__crop->width, width);
 	vratio = DIV_ROUND_CLOSEST(__crop->height, height);
@@ -565,15 +567,17 @@ static int mt9p031_set_crop(struct v4l2_subdev *subdev,
 			  MT9P031_COLUMN_START_MAX);
 	rect.top = clamp(ALIGN(crop->rect.top, 2), MT9P031_ROW_START_MIN,
 			 MT9P031_ROW_START_MAX);
-	rect.width = clamp(ALIGN(crop->rect.width, 2),
-			   MT9P031_WINDOW_WIDTH_MIN,
-			   MT9P031_WINDOW_WIDTH_MAX);
-	rect.height = clamp(ALIGN(crop->rect.height, 2),
-			    MT9P031_WINDOW_HEIGHT_MIN,
-			    MT9P031_WINDOW_HEIGHT_MAX);
-
-	rect.width = min(rect.width, MT9P031_PIXEL_ARRAY_WIDTH - rect.left);
-	rect.height = min(rect.height, MT9P031_PIXEL_ARRAY_HEIGHT - rect.top);
+	rect.width = clamp_t(unsigned int, ALIGN(crop->rect.width, 2),
+			     MT9P031_WINDOW_WIDTH_MIN,
+			     MT9P031_WINDOW_WIDTH_MAX);
+	rect.height = clamp_t(unsigned int, ALIGN(crop->rect.height, 2),
+			      MT9P031_WINDOW_HEIGHT_MIN,
+			      MT9P031_WINDOW_HEIGHT_MAX);
+
+	rect.width = min_t(unsigned int, rect.width,
+			   MT9P031_PIXEL_ARRAY_WIDTH - rect.left);
+	rect.height = min_t(unsigned int, rect.height,
+			    MT9P031_PIXEL_ARRAY_HEIGHT - rect.top);
 
 	__crop = __mt9p031_get_pad_crop(mt9p031, fh, crop->pad, crop->which);
 
diff --git a/drivers/media/i2c/mt9t001.c b/drivers/media/i2c/mt9t001.c
index 796463466ef..d41c70eaf83 100644
--- a/drivers/media/i2c/mt9t001.c
+++ b/drivers/media/i2c/mt9t001.c
@@ -291,10 +291,12 @@ static int mt9t001_set_format(struct v4l2_subdev *subdev,
 
 	/* Clamp the width and height to avoid dividing by zero. */
 	width = clamp_t(unsigned int, ALIGN(format->format.width, 2),
-			max(__crop->width / 8, MT9T001_WINDOW_HEIGHT_MIN + 1),
+			max_t(unsigned int, __crop->width / 8,
+			      MT9T001_WINDOW_HEIGHT_MIN + 1),
 			__crop->width);
 	height = clamp_t(unsigned int, ALIGN(format->format.height, 2),
-			 max(__crop->height / 8, MT9T001_WINDOW_HEIGHT_MIN + 1),
+			 max_t(unsigned int, __crop->height / 8,
+			       MT9T001_WINDOW_HEIGHT_MIN + 1),
 			 __crop->height);
 
 	hratio = DIV_ROUND_CLOSEST(__crop->width, width);
@@ -339,15 +341,17 @@ static int mt9t001_set_crop(struct v4l2_subdev *subdev,
 	rect.top = clamp(ALIGN(crop->rect.top, 2),
 			 MT9T001_ROW_START_MIN,
 			 MT9T001_ROW_START_MAX);
-	rect.width = clamp(ALIGN(crop->rect.width, 2),
-			   MT9T001_WINDOW_WIDTH_MIN + 1,
-			   MT9T001_WINDOW_WIDTH_MAX + 1);
-	rect.height = clamp(ALIGN(crop->rect.height, 2),
-			    MT9T001_WINDOW_HEIGHT_MIN + 1,
-			    MT9T001_WINDOW_HEIGHT_MAX + 1);
-
-	rect.width = min(rect.width, MT9T001_PIXEL_ARRAY_WIDTH - rect.left);
-	rect.height = min(rect.height, MT9T001_PIXEL_ARRAY_HEIGHT - rect.top);
+	rect.width = clamp_t(unsigned int, ALIGN(crop->rect.width, 2),
+			     MT9T001_WINDOW_WIDTH_MIN + 1,
+			     MT9T001_WINDOW_WIDTH_MAX + 1);
+	rect.height = clamp_t(unsigned int, ALIGN(crop->rect.height, 2),
+			      MT9T001_WINDOW_HEIGHT_MIN + 1,
+			      MT9T001_WINDOW_HEIGHT_MAX + 1);
+
+	rect.width = min_t(unsigned int, rect.width,
+			   MT9T001_PIXEL_ARRAY_WIDTH - rect.left);
+	rect.height = min_t(unsigned int, rect.height,
+			    MT9T001_PIXEL_ARRAY_HEIGHT - rect.top);
 
 	__crop = __mt9t001_get_pad_crop(mt9t001, fh, crop->pad, crop->which);
 
diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c
index 0d2b4a8cf91..36c504b78f2 100644
--- a/drivers/media/i2c/mt9v032.c
+++ b/drivers/media/i2c/mt9v032.c
@@ -305,8 +305,8 @@ mt9v032_update_hblank(struct mt9v032 *mt9v032)
 
 	if (mt9v032->version->version == MT9V034_CHIP_ID_REV1)
 		min_hblank += (mt9v032->hratio - 1) * 10;
-	min_hblank = max((int)mt9v032->model->data->min_row_time - crop->width,
-			 (int)min_hblank);
+	min_hblank = max_t(unsigned int, (int)mt9v032->model->data->min_row_time - crop->width,
+			   (int)min_hblank);
 	hblank = max_t(unsigned int, mt9v032->hblank, min_hblank);
 
 	return mt9v032_write(client, MT9V032_HORIZONTAL_BLANKING, hblank);
@@ -525,12 +525,14 @@ static int mt9v032_set_format(struct v4l2_subdev *subdev,
 					format->which);
 
 	/* Clamp the width and height to avoid dividing by zero. */
-	width = clamp_t(unsigned int, ALIGN(format->format.width, 2),
-			max(__crop->width / 4, MT9V032_WINDOW_WIDTH_MIN),
-			__crop->width);
-	height = clamp_t(unsigned int, ALIGN(format->format.height, 2),
-			 max(__crop->height / 4, MT9V032_WINDOW_HEIGHT_MIN),
-			 __crop->height);
+	width = clamp(ALIGN(format->format.width, 2),
+		      max_t(unsigned int, __crop->width / 4,
+			    MT9V032_WINDOW_WIDTH_MIN),
+		      __crop->width);
+	height = clamp(ALIGN(format->format.height, 2),
+		       max_t(unsigned int, __crop->height / 4,
+			     MT9V032_WINDOW_HEIGHT_MIN),
+		       __crop->height);
 
 	hratio = mt9v032_calc_ratio(__crop->width, width);
 	vratio = mt9v032_calc_ratio(__crop->height, height);
@@ -580,15 +582,17 @@ static int mt9v032_set_crop(struct v4l2_subdev *subdev,
 	rect.top = clamp(ALIGN(crop->rect.top + 1, 2) - 1,
 			 MT9V032_ROW_START_MIN,
 			 MT9V032_ROW_START_MAX);
-	rect.width = clamp(ALIGN(crop->rect.width, 2),
-			   MT9V032_WINDOW_WIDTH_MIN,
-			   MT9V032_WINDOW_WIDTH_MAX);
-	rect.height = clamp(ALIGN(crop->rect.height, 2),
-			    MT9V032_WINDOW_HEIGHT_MIN,
-			    MT9V032_WINDOW_HEIGHT_MAX);
-
-	rect.width = min(rect.width, MT9V032_PIXEL_ARRAY_WIDTH - rect.left);
-	rect.height = min(rect.height, MT9V032_PIXEL_ARRAY_HEIGHT - rect.top);
+	rect.width = clamp_t(unsigned int, ALIGN(crop->rect.width, 2),
+			     MT9V032_WINDOW_WIDTH_MIN,
+			     MT9V032_WINDOW_WIDTH_MAX);
+	rect.height = clamp_t(unsigned int, ALIGN(crop->rect.height, 2),
+			      MT9V032_WINDOW_HEIGHT_MIN,
+			      MT9V032_WINDOW_HEIGHT_MAX);
+
+	rect.width = min_t(unsigned int,
+			   rect.width, MT9V032_PIXEL_ARRAY_WIDTH - rect.left);
+	rect.height = min_t(unsigned int,
+			    rect.height, MT9V032_PIXEL_ARRAY_HEIGHT - rect.top);
 
 	__crop = __mt9v032_get_pad_crop(mt9v032, fh, crop->pad, crop->which);
 
diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index fbd48f04b5c..8741cae9c9f 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -2027,8 +2027,8 @@ static int smiapp_set_crop(struct v4l2_subdev *subdev,
 	sel->r.width = min(sel->r.width, src_size->width);
 	sel->r.height = min(sel->r.height, src_size->height);
 
-	sel->r.left = min(sel->r.left, src_size->width - sel->r.width);
-	sel->r.top = min(sel->r.top, src_size->height - sel->r.height);
+	sel->r.left = min_t(int, sel->r.left, src_size->width - sel->r.width);
+	sel->r.top = min_t(int, sel->r.top, src_size->height - sel->r.height);
 
 	*crops[sel->pad] = sel->r;
 
@@ -2120,8 +2120,8 @@ static int smiapp_set_selection(struct v4l2_subdev *subdev,
 
 	sel->r.left = max(0, sel->r.left & ~1);
 	sel->r.top = max(0, sel->r.top & ~1);
-	sel->r.width = max(0, SMIAPP_ALIGN_DIM(sel->r.width, sel->flags));
-	sel->r.height = max(0, SMIAPP_ALIGN_DIM(sel->r.height, sel->flags));
+	sel->r.width = SMIAPP_ALIGN_DIM(sel->r.width, sel->flags);
+	sel->r.height =	SMIAPP_ALIGN_DIM(sel->r.height, sel->flags);
 
 	sel->r.width = max_t(unsigned int,
 			     sensor->limits[SMIAPP_LIMIT_MIN_X_OUTPUT_SIZE],
diff --git a/drivers/media/i2c/soc_camera/mt9m111.c b/drivers/media/i2c/soc_camera/mt9m111.c
index 6f4056668bb..ccf59406a17 100644
--- a/drivers/media/i2c/soc_camera/mt9m111.c
+++ b/drivers/media/i2c/soc_camera/mt9m111.c
@@ -208,8 +208,8 @@ struct mt9m111 {
 	struct mt9m111_context *ctx;
 	struct v4l2_rect rect;	/* cropping rectangle */
 	struct v4l2_clk *clk;
-	int width;		/* output */
-	int height;		/* sizes */
+	unsigned int width;	/* output */
+	unsigned int height;	/* sizes */
 	struct mutex power_lock; /* lock to protect power_count */
 	int power_count;
 	const struct mt9m111_datafmt *fmt;
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 2ed05b67218..542d2528b3f 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -863,7 +863,7 @@ static int tvp5150_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
 	struct v4l2_rect rect = a->c;
 	struct tvp5150 *decoder = to_tvp5150(sd);
 	v4l2_std_id std;
-	int hmax;
+	unsigned int hmax;
 
 	v4l2_dbg(1, debug, sd, "%s left=%d, top=%d, width=%d, height=%d\n",
 		__func__, rect.left, rect.top, rect.width, rect.height);
@@ -873,9 +873,9 @@ static int tvp5150_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
 
 	/* tvp5150 has some special limits */
 	rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
-	rect.width = clamp(rect.width,
-			   TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
-			   TVP5150_H_MAX - rect.left);
+	rect.width = clamp_t(unsigned int, rect.width,
+			     TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
+			     TVP5150_H_MAX - rect.left);
 	rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);
 
 	/* Calculate height based on current standard */
@@ -889,9 +889,9 @@ static int tvp5150_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
 	else
 		hmax = TVP5150_V_MAX_OTHERS;
 
-	rect.height = clamp(rect.height,
-			    hmax - TVP5150_MAX_CROP_TOP - rect.top,
-			    hmax - rect.top);
+	rect.height = clamp_t(unsigned int, rect.height,
+			      hmax - TVP5150_MAX_CROP_TOP - rect.top,
+			      hmax - rect.top);
 
 	tvp5150_write(sd, TVP5150_VERT_BLANKING_START, rect.top);
 	tvp5150_write(sd, TVP5150_VERT_BLANKING_STOP,
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index c2aaadcd931..afcd53bfcf8 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -1126,9 +1126,9 @@ bttv_crop_calc_limits(struct bttv_crop *c)
 		c->min_scaled_height = 32;
 	} else {
 		c->min_scaled_width =
-			(max(48, c->rect.width >> 4) + 3) & ~3;
+			(max_t(unsigned int, 48, c->rect.width >> 4) + 3) & ~3;
 		c->min_scaled_height =
-			max(32, c->rect.height >> 4);
+			max_t(unsigned int, 32, c->rect.height >> 4);
 	}
 
 	c->max_scaled_width  = c->rect.width & ~3;
@@ -2024,7 +2024,7 @@ limit_scaled_size_lock       (struct bttv_fh *               fh,
 		/* We cannot scale up. When the scaled image is larger
 		   than crop.rect we adjust the crop.rect as required
 		   by the V4L2 spec, hence cropcap.bounds are our limit. */
-		max_width = min(b->width, (__s32) MAX_HACTIVE);
+		max_width = min_t(unsigned int, b->width, MAX_HACTIVE);
 		max_height = b->height;
 
 		/* We cannot capture the same line as video and VBI data.
diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c
index 36026b1cb3f..eb472b5b26a 100644
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -1729,10 +1729,6 @@ static int saa7134_s_crop(struct file *file, void *f, const struct v4l2_crop *cr
 	if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
 	    crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
 		return -EINVAL;
-	if (crop->c.height < 0)
-		return -EINVAL;
-	if (crop->c.width < 0)
-		return -EINVAL;
 
 	if (res_locked(dev, RESOURCE_OVERLAY))
 		return -EBUSY;
diff --git a/drivers/media/platform/soc_camera/soc_scale_crop.c b/drivers/media/platform/soc_camera/soc_scale_crop.c
index cbd3a34f4f3..8e74fb7f2a0 100644
--- a/drivers/media/platform/soc_camera/soc_scale_crop.c
+++ b/drivers/media/platform/soc_camera/soc_scale_crop.c
@@ -141,8 +141,8 @@ int soc_camera_client_s_crop(struct v4l2_subdev *sd,
 	 * Popular special case - some cameras can only handle fixed sizes like
 	 * QVGA, VGA,... Take care to avoid infinite loop.
 	 */
-	width = max(cam_rect->width, 2);
-	height = max(cam_rect->height, 2);
+	width = max_t(unsigned int, cam_rect->width, 2);
+	height = max_t(unsigned int, cam_rect->height, 2);
 
 	/*
 	 * Loop as long as sensor is not covering the requested rectangle and