Re: [alsa-devel] Seg. fault when using Salsa 0.0.25

At Thu, 5 Nov 2009 11:32:39 +0100, Mogens Lindholdt Lauridsen wrote:

Hi,

I got an application which uses Salsa 0.0.25. When I quit this application, it ends with a seg. fault.

I don't know if this is caused by my application using Salsa wrongly, or a problem in Salsa.

However, I got a fix for it.

When my application closes, "hctl_elem_event_handler" is called. And since "helem->private_data" is null, this causes a seg. fault: snd_mixer_elem_t *elem = helem->private_data; snd_mixer_t *mixer = elem->mixer;

It seems like: if (!elem) return 0; should have been before: snd_mixer_t *mixer = elem->mixer;

Ah, a typical NULL dereference. Fixed and released as version 0.0.26 now.

thanks,

Takashi