ALSA: fireface: fix configuration error for nominal sampling transfer frequency
authorTakashi Sakamoto <o-takashi@sakamocchi.jp>
Sun, 10 May 2020 07:42:56 +0000 (16:42 +0900)
committerTakashi Iwai <tiwai@suse.de>
Sun, 10 May 2020 10:03:47 +0000 (12:03 +0200)
commitbbd6aac3ae15bef762af03bf62e35ace5c4292bd
tree57074a5c2e2805374f2ad6f9c46d7efb8ea848c6
parent69efd5c4bd4c0e5e0d5388aa21d71d1313714a0e
ALSA: fireface: fix configuration error for nominal sampling transfer frequency

128000 and 192000 are congruence modulo 32000, thus it's wrong to
distinguish them as multiple of 32000 and 48000 by modulo 32000 at
first.

Additionally, used condition statement to detect quadruple speed can
cause missing bit flag.

Furthermore, counter to ensure the configuration is wrong and it
causes false positive.

This commit fixes the above three bugs.

Cc: <stable@vger.kernel.org>
Fixes: 60aec494b389 ("ALSA: fireface: support allocate_resources operation in latter protocol")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200510074301.116224-2-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/firewire/fireface/ff-protocol-latter.c