The -41 introduced this commit from stable kernel, after reverting it, the sof driver will not print calltrace anymore (#4). And the kernle-5.4 (focal) also backported this commit, but it doesn't introduce the calltrace in the 5.4 kernel. So it looks like to backport this commit to 5.3, we need something else which is not in kernel-5.3 but is in the kernel-5.4.
commit 063821115e02229d5fd3de31bad270d5e30aeb41 Author: Dragos Tarcatu <dragos_tarc...@mentor.com> Date: Mon Dec 9 18:39:38 2019 -0600 ASoC: topology: Check return value for snd_soc_add_dai_link() BugLink: https://bugs.launchpad.net/bugs/1861929 [ Upstream commit 76d2703649321c296df7ec0dafd50add96215de4 ] snd_soc_add_dai_link() might fail. This situation occurs for instance in a very specific use case where a PCM device and a Back End DAI link are given identical names in the topology. When this happens, soc_new_pcm_runtime() fails and then snd_soc_add_dai_link() returns -ENOMEM when called from soc_tplg_fe_link_create(). Because of that, the link will not get added into the card list, so any attempt to remove it later ends up in a panic. Fix that by checking the return status and free the memory in case of an error. Reviewed-by: Ranjani Sridharan <ranjani.sridha...@linux.intel.com> Signed-off-by: Dragos Tarcatu <dragos_tarc...@mentor.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.boss...@linux.intel.com> Link: https://lore.kernel.org/r/20191210003939.15752-2-pierre-louis.boss...@linux.intel.com Signed-off-by: Mark Brown <broo...@kernel.org> Signed-off-by: Sasha Levin <sas...@kernel.org> Signed-off-by: Kamal Mostafa <ka...@canonical.com> Signed-off-by: Khalid Elmously <khalid.elmou...@canonical.com> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1864061 Title: PCI/internal sound card not detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1864061/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs