ALSA: firewire-tascam: use fixed-length array for message cache to async midi port
ALSA driver for TASCAM FireWire series internally allocates 4 byte buffer for asynchronous transaction to transfer MIDI messages. However, the buffer can be allocated with memory object of parent structure. This commit adds 4 byte array as a member of the structure and obsoletes the redundant allocation. This is deallocated with memory object of parent structure. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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