Geert Uytterhoeven f1bf14dab4 ALSA: fireface: Fix integer overflow in transmit_midi_msg() ... commit e7c22eeaff8565d9a8374f320238c251ca31480b upstream. As snd_ff.rx_bytes[] is unsigned int, and NSEC_PER_SEC is 1000000000L, the second multiplication in ff->rx_bytes[port] * 8 * NSEC_PER_SEC / 31250 always overflows on 32-bit platforms, truncating the result. Fix this by precalculating "NSEC_PER_SEC / 31250", which is an integer constant. Note that this assumes ff->rx_bytes[port] <= 16777. Fixes: 1917429578 ("ALSA: fireface: add transaction support") Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20210111130251.361335-2-geert+renesas@glider.be Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-01-19 18:22:38 +01:00
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amdtp-ff.c	locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()	2017-10-25 11:01:08 +02:00
ff-hwdep.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
ff-midi.c	locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()	2017-10-25 11:01:08 +02:00
ff-pcm.c	ALSA: pcm: Nuke snd_pcm_lib_mmap_vmalloc()	2018-07-18 08:24:29 +02:00
ff-proc.c	sound: Use octal not symbolic permissions	2018-05-28 11:27:20 +02:00
ff-protocol-ff400.c	ALSA: fireface: fix for state to fetch PCM frames	2019-01-09 17:38:37 +01:00
ff-stream.c	ALSA: fireface: add hwdep interface	2017-04-05 21:31:49 +02:00
ff-transaction.c	ALSA: fireface: Fix integer overflow in transmit_midi_msg()	2021-01-19 18:22:38 +01:00
ff.c	ALSA: firewire: add const qualifier to identifiers for read-only symbols	2017-08-22 16:08:00 +02:00
ff.h	ALSA: firewire: add const qualifier to identifiers for read-only symbols	2017-08-22 16:08:00 +02:00
Makefile	ALSA: fireface: add support for Fireface 400	2017-04-05 21:31:54 +02:00