[alsa-devel] [PATCH] ALSA: ASoC: fix NULL pointer dereference in soc_suspend()

Mark Brown broonie at opensource.wolfsonmicro.com
Thu Jun 4 14:25:44 CEST 2009

On Wed, Jun 03, 2009 at 05:44:49PM +0200, Daniel Mack wrote:
> In case the initalization of an soc_device failed, there is no codec
> associated with it. soc_suspend() will still dereference the pointer
> and cause an Ooops when entering the sleep mode.
> This happens on our board with a multi-target kernel image when booted
> on a machine without audio circuits.
> This patch makes the code bail out very early in this special case.

A better fix would be to stop the device registering at all if the
initialsation fails but that's a bit more involved and in the meantime
this makes the situation better.  Probably best to wait for the real fix
until multiple cards are supported.

Thanks, I've applied this.

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