linux-stable/sound/firewire/digi00x
Takashi Sakamoto 366a20d7a7 ALSA: firewire: use managed-resource of fw unit device for private data
At present, private data of each driver in ALSA firewire stack is
allocated/freed by kernel slab allocator for corresponding unit on
IEEE 1394 bus. In this case, resource-managed slab allocator is
available to release memory object automatically just before releasing
device structure for the unit. This idea can prevent runtime from
memory leak due to programming mistakes.

This commit uses the allocator for the private data. These drivers
already use reference counter to maintain lifetime of device structure
for the unit by a pair of fw_unit_get()/fw_unit_put(). The private data
is safely released in a callback of 'struct snd_card.private_free().

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-10-04 07:54:01 +02:00
..
amdtp-dot.c locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
digi00x-hwdep.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
digi00x-midi.c ALSA: firewire-digi00x: allow user space applications to read/write MIDI messages for all ports 2017-04-05 21:34:11 +02:00
digi00x-pcm.c ALSA: pcm: Nuke snd_pcm_lib_mmap_vmalloc() 2018-07-18 08:24:29 +02:00
digi00x-proc.c sound: Use octal not symbolic permissions 2018-05-28 11:27:20 +02:00
digi00x-stream.c ALSA: firewire-digi00x: add support for MIDI ports corresponding to isochronous packet streaming 2015-10-11 18:26:04 +02:00
digi00x-transaction.c ALSA: firewire-digi00x: remove transaction handler for unknown purpose 2017-04-05 21:34:13 +02:00
digi00x.c ALSA: firewire: use managed-resource of fw unit device for private data 2018-10-04 07:54:01 +02:00
digi00x.h ALSA: firewire: remove support for 16 bit PCM samples in playback substream 2017-05-22 16:24:08 +02:00
Makefile ALSA: firewire-digi00x: add support for MIDI ports corresponding to isochronous packet streaming 2015-10-11 18:26:04 +02:00