On Wed, 03 Oct 2018 01:21:49 +0200, Takashi Sakamoto wrote:
Hi,
Linux Device Driver subsystem has a feature of 'devres', which is resource allocator/deallocator synchronously to reference counter of kobject corresponding to device structure. This feature avoid memory leak from programming mistakes.
This patchset replaces calls of allocator/deallocator with devres helper functions. There're two types of target device structure; firewire unit device and sound card device. All drivers in ALSA firewire stack use reference counting to serialize timing to release the type of two device, therefore no worries of dereferencing to released memory objects.
This patchset is for v4.20 and based on my series of fix patches in 'sound-4.19-rc5' branch. But current 'for-next' branch doesn't include them. So this patchset is rebased to upstream 'master' branch (HEAD=067284726963). I'm OK to take them pending till the '-rc5' is merged.
Takashi Sakamoto (5): ALSA: firewire: use managed-resource of fw unit device for private data ALSA: bebob: use managed-resource to maintain data specific to M-Audio FW-1814/ProjectMix I/O ALSA: fireworks: use managed-resource to maintain response buffer ALSA: oxfw: use managed-resource to maintain model-specific data ALSA: oxfw: use managed-resource to maintain cache of stream formats
I merged for-linus into for-next, and applied all five patches now. Thanks.
Takashi