On 17/10/2018 20:16, Mark Brown wrote:
On Wed, Oct 17, 2018 at 02:28:22PM +0000, Marcel Ziswiler wrote:
Some questions:
- How exactly are devm allocations supposed to work concerning probe
deferrals?
Probe deferrals are just normal probe errors, any devm_ allocated stuff gets unwound.
- Does or should the platform get cleared during a probe deferral
cycle?
- If so, why does that not work?
Is something writing to static data when it should be writing to dynamically allocated data? That's what this sounds like, we shouldn't be modifying any static data and any data dynamically allocated during probe ought to be being discarded.
Marcel, it maybe worth looking at what happens in the 2nd call to snd_soc_init_platform() following the probe deferral. Also pay attention to the value of 'dai_link->platform_name' in snd_soc_init_platform() on both 1st and 2nd call. Seems that on the 2nd time the function is called the value is not NULL???
Cheers Jon