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authorTakashi Iwai <tiwai@suse.de>2017-10-25 11:00:43 +0300
committerTakashi Iwai <tiwai@suse.de>2017-10-25 11:00:43 +0300
commit20e5f8bfb153bdd43b5be194658f8ad814470a5d (patch)
tree7989623430877bfdbb32e446b8f7ce64c0de3555 /sound/i2c
parent4f928246f0e8f9bda88f41131ec447a1b8193dbc (diff)
downloadlinux-20e5f8bfb153bdd43b5be194658f8ad814470a5d.tar.xz
ALSA: sb: Minor optimization / fix of timer usage in sb8_midi.c
Currently the SB8 MIDI code sets up the timer object at each time before scheduling it at trigger callback, but basically this is superfluous once after set up. Also, the code misses the del_timer_sync() call that may leave a race condition for use-after-free. This patch addresses these issues, moving timer_setup() to snd_sb8dsp_midi(), and adding the del_timer_sync() call at snd_sb8dsp_midi_output_trigger() to make sure. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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