[PATCH] v4l: check_v4l2 should return -EINVAL on error

[PATCH] v4l: check_v4l2 should return -EINVAL on error

[Marcin Slusarz]

check_v4l2 always returns 0, so this change is an noop for now,
but a comment says it will return something else in the future

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
---
compile tested only
---
 drivers/media/video/tuner-core.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -795,7 +795,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 	case VIDIOCSAUDIO:
 		if (check_mode(t, "VIDIOCSAUDIO") == -EINVAL)
 			return 0;
-		if (check_v4l2(t) == EINVAL)
+		if (check_v4l2(t) == -EINVAL)
 			return 0;
 
 		/* Should be implemented, since bttv calls it */
@@ -813,7 +813,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 			};
 			struct video_channel *vc = arg;
 
-			if (check_v4l2(t) == EINVAL)
+			if (check_v4l2(t) == -EINVAL)
 				return 0;
 
 			if (set_mode(client,t,V4L2_TUNER_ANALOG_TV, "VIDIOCSCHAN")==-EINVAL)
@@ -832,7 +832,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 
 			if (check_mode(t, "VIDIOCSFREQ") == -EINVAL)
 				return 0;
-			if (check_v4l2(t) == EINVAL)
+			if (check_v4l2(t) == -EINVAL)
 				return 0;
 
 			set_freq(client, *v);
@@ -844,7 +844,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 
 			if (check_mode(t, "VIDIOCGTUNER") == -EINVAL)
 				return 0;
-			if (check_v4l2(t) == EINVAL)
+			if (check_v4l2(t) == -EINVAL)
 				return 0;
 
 			if (V4L2_TUNER_RADIO == t->mode) {
@@ -888,7 +888,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 
 			if (check_mode(t, "VIDIOCGAUDIO") == -EINVAL)
 				return 0;
-			if (check_v4l2(t) == EINVAL)
+			if (check_v4l2(t) == -EINVAL)
 				return 0;
 
 			if (V4L2_TUNER_RADIO == t->mode) {
--