V4L/DVB (8834): gspca: Have a bigger buffer for sn9c10x compressed images.

Under certain conditions sonixb compressed frame size can get bigger then
the uncompressed size (seen with 0c45:6028), so make the buffers slightly
bigger.
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/sonixb.c

@@ -207,29 +207,29 @@ static struct ctrl sd_ctrls[] = {
 static struct v4l2_pix_format vga_mode[] = {
 	{160, 120, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
 		.bytesperline = 160,
-		.sizeimage = 160 * 120,
+		.sizeimage = 160 * 120 * 5 / 4,
 		.colorspace = V4L2_COLORSPACE_SRGB,
 		.priv = 2},
 	{320, 240, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
 		.bytesperline = 320,
-		.sizeimage = 320 * 240,
+		.sizeimage = 320 * 240 * 5 / 4,
 		.colorspace = V4L2_COLORSPACE_SRGB,
 		.priv = 1},
 	{640, 480, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
 		.bytesperline = 640,
-		.sizeimage = 640 * 480,
+		.sizeimage = 640 * 480 * 5 / 4,
 		.colorspace = V4L2_COLORSPACE_SRGB,
 		.priv = 0},
 };
 static struct v4l2_pix_format sif_mode[] = {
 	{176, 144, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
 		.bytesperline = 176,
-		.sizeimage = 176 * 144,
+		.sizeimage = 176 * 144 * 5 / 4,
 		.colorspace = V4L2_COLORSPACE_SRGB,
 		.priv = 1},
 	{352, 288, V4L2_PIX_FMT_SN9C10X, V4L2_FIELD_NONE,
 		.bytesperline = 352,
-		.sizeimage = 352 * 288,
+		.sizeimage = 352 * 288 * 5 / 4,
 		.colorspace = V4L2_COLORSPACE_SRGB,
 		.priv = 0},
 };