From ee70e3d8039f16137d2e7e2e1a9cf8374b01be9b Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 6 Feb 2013 12:03:30 -0300 Subject: [PATCH] [media] bttv: fix field handling inside TRY_FMT - don't return -EINVAL for invalid field types, handle those as if it was FIELD_ANY. - the handling of FIELD_SEQ_BT/TB was wrong as well: if such field formats aren't supported, then fall back to FIELD_ANY instead of returning an error. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/pci/bt8xx/bttv-driver.c | 28 ++++++++++++---------------- 1 file changed, 12 insertions(+), 16 deletions(-) diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c index cffa8b6..73404b7 100644 --- a/drivers/media/pci/bt8xx/bttv-driver.c +++ b/drivers/media/pci/bt8xx/bttv-driver.c @@ -2530,6 +2530,7 @@ static int bttv_try_fmt_vid_cap(struct file *file, void *priv, struct bttv *btv = fh->btv; enum v4l2_field field; __s32 width, height; + __s32 height2; int rc; fmt = format_by_fourcc(f->fmt.pix.pixelformat); @@ -2538,30 +2539,25 @@ static int bttv_try_fmt_vid_cap(struct file *file, void *priv, field = f->fmt.pix.field; - if (V4L2_FIELD_ANY == field) { - __s32 height2; - - height2 = btv->crop[!!fh->do_crop].rect.height >> 1; - field = (f->fmt.pix.height > height2) - ? V4L2_FIELD_INTERLACED - : V4L2_FIELD_BOTTOM; - } - - if (V4L2_FIELD_SEQ_BT == field) - field = V4L2_FIELD_SEQ_TB; - switch (field) { case V4L2_FIELD_TOP: case V4L2_FIELD_BOTTOM: case V4L2_FIELD_ALTERNATE: case V4L2_FIELD_INTERLACED: break; + case V4L2_FIELD_SEQ_BT: case V4L2_FIELD_SEQ_TB: - if (fmt->flags & FORMAT_FLAGS_PLANAR) - return -EINVAL; + if (!(fmt->flags & FORMAT_FLAGS_PLANAR)) { + field = V4L2_FIELD_SEQ_TB; + break; + } + /* fall through */ + default: /* FIELD_ANY case */ + height2 = btv->crop[!!fh->do_crop].rect.height >> 1; + field = (f->fmt.pix.height > height2) + ? V4L2_FIELD_INTERLACED + : V4L2_FIELD_BOTTOM; break; - default: - return -EINVAL; } width = f->fmt.pix.width; -- 2.7.4