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| author |   Takashi Iwai <tiwai@suse.de> | 2019-01-30 17:46:03 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-02-01 11:30:09 +0100 |
| commit | 305a0ade180981686eec1f92aa6252a7c6ebb1cf (patch) | |
| tree | b443210ad45be6c9c0b4f7dfdb52a7593cdf647f /tools/perf/scripts/python/syscall-counts.py | |
| parent | ALSA: hda/realtek - Use a common helper for hp pin reference (diff) | |
| download | wireguard-linux-305a0ade180981686eec1f92aa6252a7c6ebb1cf.tar.xz wireguard-linux-305a0ade180981686eec1f92aa6252a7c6ebb1cf.zip | |
ALSA: hda - Serialize codec registrations
In the current code, the codec registration may happen both at the
codec bind time and the end of the controller probe time. In a rare
occasion, they race with each other, leading to Oops due to the still
uninitialized card device.
This patch introduces a simple flag to prevent the codec registration
at the codec bind time as long as the controller probe is going on.
The controller probe invokes snd_card_register() that does the whole
registration task, and we don't need to register each piece
beforehand.
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions