saa7134: Fix bytesperline not being set correctly for planar formats

BugLink: http://bugs.launchpad.net/bugs/1572722
commit 3e71da19f9dc22e39a755d6ae9678661abb66adc upstream.

bytesperline should be the bytesperline for the first plane for planar
formats, not that of all planes combined.

This fixes a crash in xawtv caused by the wrong bpl.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1305389
Reported-and-tested-by: Stas Sergeev <stsp@list.ru>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c
index 518086c7aed5cb2bc26e0c873231327e14018ca2..15e56c07b217566ff28e01d616348bfbf9a8bc0e 100644 (file)
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -1219,10 +1219,13 @@ static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
        f->fmt.pix.height       = dev->height;
        f->fmt.pix.field        = dev->field;
        f->fmt.pix.pixelformat  = dev->fmt->fourcc;
-       f->fmt.pix.bytesperline =
-               (f->fmt.pix.width * dev->fmt->depth) >> 3;
+       if (dev->fmt->planar)
+               f->fmt.pix.bytesperline = f->fmt.pix.width;
+       else
+               f->fmt.pix.bytesperline =
+                       (f->fmt.pix.width * dev->fmt->depth) / 8;
        f->fmt.pix.sizeimage =
-               f->fmt.pix.height * f->fmt.pix.bytesperline;
+               (f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
        f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
        return 0;
 }
@@ -1298,10 +1301,13 @@ static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
        if (f->fmt.pix.height > maxh)
                f->fmt.pix.height = maxh;
        f->fmt.pix.width &= ~0x03;
-       f->fmt.pix.bytesperline =
-               (f->fmt.pix.width * fmt->depth) >> 3;
+       if (fmt->planar)
+               f->fmt.pix.bytesperline = f->fmt.pix.width;
+       else
+               f->fmt.pix.bytesperline =
+                       (f->fmt.pix.width * fmt->depth) / 8;
        f->fmt.pix.sizeimage =
-               f->fmt.pix.height * f->fmt.pix.bytesperline;
+               (f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
        f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
 
        return 0;