Geert Uytterhoeven 548e4168e6 ALSA: firewire-tascam: Fix integer overflow in midi_port_work() ... commit 9f65df9c58 upstream. As snd_fw_async_midi_port.consume_bytes is unsigned int, and NSEC_PER_SEC is 1000000000L, the second multiplication in port->consume_bytes * 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 port->consume_bytes <= 16777. Fixes: 531f471834 ("ALSA: firewire-lib/firewire-tascam: localize async midi port") Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20210111130251.361335-3-geert+renesas@glider.be Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-01-19 18:26:19 +01:00
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Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
amdtp-tascam.c	ALSA: firewire-tascam: fix corruption due to spin lock without restoration in SoftIRQ context	2020-01-23 08:22:31 +01:00
tascam-hwdep.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 345	2019-06-05 17:37:08 +02:00
tascam-midi.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 345	2019-06-05 17:37:08 +02:00
tascam-pcm.c	ALSA: firewire-tascam: handle error code when getting current source of clock	2019-09-10 16:16:00 +02:00
tascam-proc.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 345	2019-06-05 17:37:08 +02:00
tascam-stream.c	Merge branch 'for-next' into for-linus	2019-09-14 17:26:10 +02:00
tascam-transaction.c	ALSA: firewire-tascam: Fix integer overflow in midi_port_work()	2021-01-19 18:26:19 +01:00
tascam.c	ALSA; firewire-tascam: exclude Tascam FE-8 from detection	2020-09-09 19:12:33 +02:00
tascam.h	ALSA: firewire-tascam: add note for FE-8	2019-09-06 14:59:43 +02:00