[alsa-devel] [PATCH 0/2] ALSA: dice: fix a fatal bug when no sound card is registered

[Takashi Sakamoto]

Hi,

This patchset is for Linux 4.6-rc2.

ALSA dice driver causes kernel NULL pointer dereference in a case that
no sound card instance is registered and unit is going to be removed.
This is observed when dice-based units are connected to Linux system and
disconnected within 2 seconds, thus it's rare.

Additionally, even if the bug is fixed, the driver dumps warnings for
most dice-based models which supports a pair of isochronous streams.
This can occur regardless of the former bug. Users can see this for
unsupported dice-based models.

This patchset fixes these bugs.

Takashi Sakamoto (2):
  ALSA: dice: fix NULL pointer dereference at remove units when sound
    card is not registered
  ALSA: firewire-lib: skip releasing stream data when it's not
    initialized

 sound/firewire/amdtp-stream.c     |  4 ++++
 sound/firewire/dice/dice-stream.c | 14 ++++----------
 2 files changed, 8 insertions(+), 10 deletions(-)

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2.7.3