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authorHans Verkuil <hans.verkuil@cisco.com>2012-09-06 15:07:25 +0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-01-05 03:47:41 +0100
commit20deebfe17b20ded00ba404adbcd014eb2b024c1 (patch)
treef682657f8782286204a5179dc854153733c10ec8 /drivers/media/usb/em28xx/em28xx-video.c
parent[media] em28xx: fix VIDIOC_DBG_G_CHIP_IDENT compliance errors (diff)
downloadlinux-20deebfe17b20ded00ba404adbcd014eb2b024c1.tar.xz
linux-20deebfe17b20ded00ba404adbcd014eb2b024c1.zip
[media] em28xx: fix tuner/frequency handling
v4l2-compliance found problems with frequency clamping that wasn't reported correctly and missing tuner index checks. Also removed unnecessary tuner type checks (these are now done by the v4l2 core). Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to '')
-rw-r--r--drivers/media/usb/em28xx/em28xx-video.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
index b71df42aa7bb..89cbfaf17bda 100644
--- a/drivers/media/usb/em28xx/em28xx-video.c
+++ b/drivers/media/usb/em28xx/em28xx-video.c
@@ -1322,7 +1322,6 @@ static int vidioc_g_tuner(struct file *file, void *priv,
return -EINVAL;
strcpy(t->name, "Tuner");
- t->type = V4L2_TUNER_ANALOG_TV;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
return 0;
@@ -1352,7 +1351,9 @@ static int vidioc_g_frequency(struct file *file, void *priv,
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
- f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+ if (0 != f->tuner)
+ return -EINVAL;
+
f->frequency = dev->ctl_freq;
return 0;
}
@@ -1371,13 +1372,9 @@ static int vidioc_s_frequency(struct file *file, void *priv,
if (0 != f->tuner)
return -EINVAL;
- if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
- return -EINVAL;
- if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
- return -EINVAL;
-
- dev->ctl_freq = f->frequency;
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, f);
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
+ dev->ctl_freq = f->frequency;
return 0;
}