Re: [PATCH] soundwire: intel_init: test link->cdns

From: Pierre-Louis Bossart
Date: Thu Apr 01 2021 - 14:52:16 EST




On 4/1/21 2:21 AM, Vinod Koul wrote:
On 31-03-21, 09:02, Bard Liao wrote:
intel_link_probe() could return error and dev_get_drvdata() will return
null in such case. So we have to test link->cdns after
link->cdns = dev_get_drvdata(&ldev->auxdev.dev);
Otherwise, we will meet the "kernel NULL pointer dereference" error.

This fails to apply for me

probably a dependency on the auxiliary bus transition?