** Changed in: linux (Ubuntu Eoan)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu Focal)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1874359
Title:
alsa/sof: kernel oops on the machine without Intel hdmi audio codec (a
regression in the asoc machine driver)
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.6 package in Ubuntu:
Fix Released
Status in linux-oem-osp1 package in Ubuntu:
Confirmed
Status in linux-oem-osp1 source package in Bionic:
Fix Committed
Status in linux source package in Eoan:
Fix Committed
Status in linux source package in Focal:
Fix Committed
Status in linux-oem-5.6 source package in Focal:
Fix Committed
Bug description:
Please apply the fix for #1872569 first, then apply this patch.
[Impact]
The fix for #1872569 introduces a regression, the driver access a
NULL pointer on the machiens without Intel hdmi audio codec.
[Fix]
pick a fixing patch from alsa/asoc repo, the patch doesn't assume
the first rtd is for hda codec, it will look for that rtd through
strstr()
[Test Case]
Boot the kenrel on those 2 Dell and 2 Lenovo machines which uses
this driver, the audio could work. disable the intel hdmi audio codec
through bios, the analogue audio still works
[Regression Risk]
Low, I have tested this patch Lenovo / Dell machines, they all worked well.
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