From f62438ac53ae852eca8e98a5a96742aac41403c7 Mon Sep 17 00:00:00 2001 From: Paul Walmsley <pwalmsley@nvidia.com> Date: Mon, 9 Dec 2013 18:40:48 -0800 Subject: [PATCH] ALSA: at73c213: clk_round_rate() can return a zero upon error Treat both negative and zero return values from clk_round_rate() as errors. This is needed since subsequent patches will convert clk_round_rate()'s return value to be an unsigned type, rather than a signed type, since some clock sources can generate rates higher than (2^31)-1 Hz. Eventually, when calling clk_round_rate(), only a return value of zero will be considered a error. All other values will be considered valid rates. The comparison against values less than 0 is kept to preserve the correct behavior in the meantime. Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Takashi Iwai <tiwai@suse.de> --- sound/spi/at73c213.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/spi/at73c213.c b/sound/spi/at73c213.c index 8e3d9a6c7a3ba..25c38afaee490 100644 --- a/sound/spi/at73c213.c +++ b/sound/spi/at73c213.c @@ -174,7 +174,7 @@ static int snd_at73c213_set_bitrate(struct snd_at73c213 *chip) dac_rate_new = 8 * (ssc_rate / ssc_div); status = clk_round_rate(chip->board->dac_clk, dac_rate_new); - if (status < 0) + if (status <= 0) return status; /* Ignore difference smaller than 256 Hz. */ -- GitLab