[media] saa7110: fix querystd
Return V4L2_STD_UNKNOWN if no signal is detected.
Otherwise AND the standard mask with the detected standards.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/i2c/saa7110.c b/drivers/media/i2c/saa7110.c
index 532105d..ac43e92 100644
--- a/drivers/media/i2c/saa7110.c
+++ b/drivers/media/i2c/saa7110.c
@@ -202,7 +202,7 @@
status = saa7110_read(sd);
if (status & 0x40) {
v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status);
- return decoder->norm; /* no change*/
+ return V4L2_STD_UNKNOWN;
}
if ((status & 3) == 0) {
saa7110_write(sd, 0x06, 0x83);
@@ -264,7 +264,7 @@
static int saa7110_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
{
- *(v4l2_std_id *)std = determine_norm(sd);
+ *std &= determine_norm(sd);
return 0;
}