Hi Hans, Hans Verkuil <hverkuil@xxxxxxxxx> writes: >> --- a/drivers/media/i2c/tda1997x.c >> +++ b/drivers/media/i2c/tda1997x.c >> @@ -1092,66 +1094,71 @@ tda1997x_detect_std(struct tda1997x_state *state, >> struct v4l2_dv_timings *timings) ... >> + if (!timings) >> + return 0; > > This check isn't necessary, timings is never NULL. Well, the tda1997x_irq_sus() does this: if (debug) tda1997x_detect_std(state, NULL); Perhaps there is a better way, but I think I will leave it for now. Also there is the issue of ignoring tda1997x_detect_std() return value, but I can now see it's only a case in tda1997x_query_dv_timings(), easy to fix. Will post an update shortly. Thanks for your comments, -- Krzysztof "Chris" Hałasa Sieć Badawcza Łukasiewicz Przemysłowy Instytut Automatyki i Pomiarów PIAP Al. Jerozolimskie 202, 02-486 Warszawa