From: Hans Verkuil Date: Wed, 29 May 2013 13:18:57 +0000 (-0300) Subject: [media] saa7110: fix querystd X-Git-Tag: firefly_0821_release~176^2~3573^2~1702 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=416e87a41d8430b8dc0f1e94f925b6deb71debbc;p=firefly-linux-kernel-4.4.55.git [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 Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/i2c/saa7110.c b/drivers/media/i2c/saa7110.c index 532105de96f0..ac43e929a1d6 100644 --- a/drivers/media/i2c/saa7110.c +++ b/drivers/media/i2c/saa7110.c @@ -202,7 +202,7 @@ static v4l2_std_id determine_norm(struct v4l2_subdev *sd) 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_g_input_status(struct v4l2_subdev *sd, u32 *pstatus) 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; }