diff options
| author | Takashi Iwai <tiwai@suse.de> | 2019-01-30 17:46:03 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-20 10:13:16 +0100 |
| commit | 71ce2e8957ff6eed31953f54a02fc3bd083f0d26 (patch) | |
| tree | 42e0f6f0cb8cb750b5cd2228105e3c18a7cbf0b3 /mm/init-mm.c | |
| parent | d7204d3860ee12f1d3da9680e9f25afa9ad65c1f (diff) | |
ALSA: hda - Serialize codec registrations
commit 305a0ade180981686eec1f92aa6252a7c6ebb1cf upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/init-mm.c')
0 files changed, 0 insertions, 0 deletions