V4L/DVB (13241): Cleanup redundant tests on unsigned

The variables are unsigned so the test `>= 0' is always true,
the `< 0' test always fails. In these cases the other part of
the test catches wrapped values.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/common/tuners/tda9887.c

@@ -463,7 +463,7 @@ static int tda9887_set_insmod(struct dvb_frontend *fe)
 			buf[1] &= ~cQSS;
 	}
 
-	if (adjust >= 0x00 && adjust < 0x20) {
+	if (adjust < 0x20) {
 		buf[2] &= ~cTopMask;
 		buf[2] |= adjust;
 	}

drivers/media/dvb/siano/smscoreapi.c

@@ -1373,7 +1373,7 @@ static int GetGpioPinParams(u32 PinNum, u32 *pTranslatedPinNum,
 
 	*pGroupCfg = 1;
 
-	if (PinNum >= 0 && PinNum <= 1)	{
+	if (PinNum <= 1)	{
 		*pTranslatedPinNum = 0;
 		*pGroupNum = 9;
 		*pGroupCfg = 2;

drivers/media/video/bt819.c

@@ -299,7 +299,7 @@ static int bt819_s_routing(struct v4l2_subdev *sd,
 
 	v4l2_dbg(1, debug, sd, "set input %x\n", input);
 
-	if (input < 0 || input > 7)
+	if (input > 7)
 		return -EINVAL;
 
 	if (sd->v4l2_dev == NULL || sd->v4l2_dev->notify == NULL)

drivers/media/video/hexium_gemini.c

@@ -251,7 +251,7 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 
 	DEB_EE(("VIDIOC_S_INPUT %d.\n", input));
 
-	if (input < 0 || input >= HEXIUM_INPUTS)
+	if (input >= HEXIUM_INPUTS)
 		return -EINVAL;
 
 	hexium->cur_input = input;

drivers/media/video/hexium_orion.c

@@ -350,7 +350,7 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 	struct hexium *hexium = (struct hexium *) dev->ext_priv;
 
-	if (input < 0 || input >= HEXIUM_INPUTS)
+	if (input >= HEXIUM_INPUTS)
 		return -EINVAL;
 
 	hexium->cur_input = input;

drivers/media/video/mxb.c

@@ -478,7 +478,7 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
 
 	DEB_EE(("VIDIOC_S_INPUT %d.\n", input));
 
-	if (input < 0 || input >= MXB_INPUTS)
+	if (input >= MXB_INPUTS)
 		return -EINVAL;
 
 	mxb->cur_input = input;

drivers/media/video/s2255drv.c

@@ -1958,7 +1958,7 @@ static int save_frame(struct s2255_dev *dev, struct s2255_pipeinfo *pipe_info)
 				if (pdword[1] >= MAX_CHANNELS)
 					break;
 				cc = G_chnmap[pdword[1]];
-				if (!(cc >= 0 && cc < MAX_CHANNELS))
+				if (cc >= MAX_CHANNELS)
 					break;
 				switch (pdword[2]) {
 				case S2255_RESPONSE_SETMODE:

drivers/media/video/saa7110.c

@@ -304,7 +304,7 @@ static int saa7110_s_routing(struct v4l2_subdev *sd,
 {
 	struct saa7110 *decoder = to_saa7110(sd);
 
-	if (input < 0 || input >= SAA7110_MAX_INPUT) {
+	if (input >= SAA7110_MAX_INPUT) {
 		v4l2_dbg(1, debug, sd, "input=%d not available\n", input);
 		return -EINVAL;
 	}

drivers/media/video/saa717x.c

@@ -1115,7 +1115,7 @@ static int saa717x_s_video_routing(struct v4l2_subdev *sd,
 	v4l2_dbg(1, debug, sd, "decoder set input (%d)\n", input);
 	/* inputs from 0-9 are available*/
 	/* saa717x have mode0-mode9 but mode5 is reserved. */
-	if (input < 0 || input > 9 || input == 5)
+	if (input > 9 || input == 5)
 		return -EINVAL;
 
 	if (decoder->input != input) {

drivers/media/video/tuner-core.c

@@ -328,7 +328,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
 
 	t->type = type;
 	/* prevent invalid config values */
-	t->config = ((new_config >= 0) && (new_config < 256)) ? new_config : 0;
+	t->config = new_config < 256 ? new_config : 0;
 	if (tuner_callback != NULL) {
 		tuner_dbg("defining GPIO callback\n");
 		t->fe.callback = tuner_callback;

drivers/media/video/usbvision/usbvision-video.c

@@ -601,7 +601,7 @@ static int vidioc_s_input (struct file *file, void *priv, unsigned int input)
 {
 	struct usb_usbvision *usbvision = video_drvdata(file);
 
-	if ((input >= usbvision->video_inputs) || (input < 0) )
+	if (input >= usbvision->video_inputs)
 		return -EINVAL;
 
 	mutex_lock(&usbvision->lock);

drivers/media/video/vpx3220.c

@@ -391,7 +391,7 @@ static int vpx3220_s_routing(struct v4l2_subdev *sd,
 		{0x0e, 1}
 	};
 
-	if (input < 0 || input > 2)
+	if (input > 2)
 		return -EINVAL;
 
 	v4l2_dbg(1, debug, sd, "input switched to %s\n", inputs[input]);

drivers/media/video/zoran/zoran_driver.c

@@ -2764,7 +2764,7 @@ static int zoran_enum_input(struct file *file, void *__fh,
 	struct zoran_fh *fh = __fh;
 	struct zoran *zr = fh->zr;
 
-	if (inp->index < 0 || inp->index >= zr->card.inputs)
+	if (inp->index >= zr->card.inputs)
 		return -EINVAL;
 	else {
 		int id = inp->index;