Don't register platform::micmute if the related tokens don't exist

[koba]

[Impact]
Error messge is issued during boot up,
"platform::micmute: Setting an LED's brightness failed (-19)",
but there's no micmute led on the machine.

[Fix]
Get the related tokens of SMBIOS, GLOBAL_MIC_MUTE_DISABLE/ENABLE.
If one of two tokens doesn't exist, don't register platform::micmute.
After that, you wouldn't see the platform::micmute in /sys/class/leds/,
and the error message wouldn't see in dmesg.

[test]
With the patch, if GLOBAL_MIC_MUTE_DISABLE/ENABLE don't exist, the error message
wouldn't be triggered and can't find platform::micmute in /sys/class/leds

[Regression Potential]
low, just avoid to register if device isn't presented.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem-osp1 - 5.0.0-1059.64

---------------
linux-oem-osp1 (5.0.0-1059.64) bionic; urgency=medium

  [ Ubuntu: 5.0.0-52.56 ]

  * CVE-2020-0543
    - SAUCE: x86/cpu: Add a steppings field to struct x86_cpu_id
    - SAUCE: x86/cpu: Add 'table' argument to cpu_matches()
    - SAUCE: x86/speculation: Add Special Register Buffer Data Sampling (SRBDS)
      mitigation
    - SAUCE: x86/speculation: Add SRBDS vulnerability and mitigation documentation
    - SAUCE: x86/speculation: Add Ivy Bridge to affected list

linux-oem-osp1 (5.0.0-1054.59) bionic; urgency=medium

  * bionic/linux-oem-osp1: 5.0.0-1054.59 -proposed tracker (LP: #1881221)

  * Speed up the process of s3 resume (LP: #1876844)
    - PCI/PM: Adjust pcie_wait_for_link_delay() for caller delay
    - PCI/PM: Assume ports without DLL Link Active train links in 100 ms

linux-oem-osp1 (5.0.0-1053.58) bionic; urgency=medium

  * bionic/linux-oem-osp1: 5.0.0-1053.58 -proposed tracker (LP: #1878822)

  * rtl8723bu wifi issue after being turned off (LP: #1878296)
    - rtl8xxxu: Improve TX performance of RTL8723BU on rtl8xxxu driver
    - rtl8xxxu: add bluetooth co-existence support for single antenna
    - rtl8xxxu: remove set but not used variable 'rate_mask'
    - rtl8xxxu: Remove set but not used variable 'vif', 'dev', 'len'

  * Fix Pericom USB controller OHCI/EHCI PME# defect (LP: #1879321)
    - serial: 8250_pci: Move Pericom IDs to pci_ids.h
    - PCI: Avoid Pericom USB controller OHCI/EHCI PME# defect

  * Don't register platform::micmute if the related tokens don't exist
    (LP: #1877275)
    - SAUCE: platform/x86: dell-laptop: don't register platform::micmute if the
      related tokens don't exist

  [ Ubuntu: 5.0.0-49.53 ]

  * disco/linux: 5.0.0-49.53 -proposed tracker (LP: #1878826)
  * Disco update: upstream stable patchset 2020-05-14 (LP: #1878681)
    - remoteproc: Fix wrong rvring index computation
    - mtd: cfi: fix deadloop in cfi_cmdset_0002.c do_write_buffer
    - binder: take read mode of mmap_sem in binder_alloc_free_page()
    - usb: dwc3: gadget: Do link recovery for SS and SSP
    - usb: gadget: udc: bdc: Remove unnecessary NULL checks in bdc_req_complete
    - iio:ad7797: Use correct attribute_group
    - ASoC: q6dsp6: q6afe-dai: add missing channels to MI2S DAIs
    - ASoC: tas571x: disable regulators on failed probe
    - ASoC: wm8960: Fix wrong clock after suspend & resume
    - nfsd: memory corruption in nfsd4_lock()
    - i2c: altera: use proper variable to hold errno
    - rxrpc: Fix DATA Tx to disable nofrag for UDP on AF_INET6 socket
    - net/cxgb4: Check the return from t4_query_params properly
    - xfs: acquire superblock freeze protection on eofblocks scans
    - svcrdma: Fix trace point use-after-free race
    - svcrdma: Fix leak of svc_rdma_recv_ctxt objects
    - PCI: Avoid ASMedia XHCI USB PME# from D0 defect
    - PCI: Move Apex Edge TPU class quirk to fix BAR assignment
    - ARM: dts: bcm283x: Disable dsi0 node
    - cpumap: Avoid warning when CONFIG_DEBUG_PER_CPU_MAPS is enabled
    - net/mlx5: Fix failing fw tracer allocation on s390
    - perf/core: fix parent pid/tid in task exit events
    - bpf, x86_3...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem-5.6 - 5.6.0-1011.11

---------------
linux-oem-5.6 (5.6.0-1011.11) focal; urgency=medium

  * focal/linux-oem-5.6: 5.6.0-1011.11 -proposed tracker (LP: #1880094)

  * Fix Pericom USB controller OHCI/EHCI PME# defect (LP: #1879321)
    - serial: 8250_pci: Move Pericom IDs to pci_ids.h
    - PCI: Avoid Pericom USB controller OHCI/EHCI PME# defect

  * Focal update: v5.6.14 upstream stable release (LP: #1879724)
    - KVM: nVMX: Consolidate nested MTF checks to helper function
    - kvm: nVMX: reflect MTF VM-exits if injected by L1
    - xprtrdma: Clean up the post_send path
    - xprtrdma: Fix trace point use-after-free race
    - shmem: fix possible deadlocks on shmlock_user_lock
    - net: phy: microchip_t1: add lan87xx_phy_init to initialize the lan87xx phy.
    - KVM: arm: vgic: Synchronize the whole guest on GIC{D,R}_I{S,C}ACTIVER read
    - KVM: arm: vgic-v2: Only use the virtual state when userspace accesses
      pending bits
    - gpio: pca953x: Fix pca953x_gpio_set_config
    - SUNRPC: Add "@len" parameter to gss_unwrap()
    - SUNRPC: Fix GSS privacy computation of auth->au_ralign
    - net/sonic: Fix a resource leak in an error handling path in
      'jazz_sonic_probe()'
    - net: moxa: Fix a potential double 'free_irq()'
    - ftrace/selftests: workaround cgroup RT scheduling issues
    - hv_netvsc: Fix netvsc_start_xmit's return type
    - drop_monitor: work around gcc-10 stringop-overflow warning
    - virtio-blk: handle block_device_operations callbacks after hot unplug
    - sun6i: dsi: fix gcc-4.8
    - net_sched: fix tcm_parent in tc filter dump
    - net: stmmac: gmac5+: fix potential integer overflow on 32 bit multiply
    - iommu/amd: Fix race in increase_address_space()/fetch_pte()
    - iommu/amd: Update Device Table in increase_address_space()
    - net: dsa: ocelot: the MAC table on Felix is twice as large
    - net: mscc: ocelot: ANA_AUTOAGE_AGE_PERIOD holds a value in seconds, not ms
    - mmc: sdhci-acpi: Add SDHCI_QUIRK2_BROKEN_64_BIT_DMA for AMDI0040
    - dpaa2-eth: properly handle buffer size restrictions
    - mptcp: set correct vfs info for subflows
    - net: fix a potential recursive NETDEV_FEAT_CHANGE
    - netlabel: cope with NULL catmap
    - net: phy: fix aneg restart in phy_ethtool_set_eee
    - net: stmmac: fix num_por initialization
    - pppoe: only process PADT targeted at local interfaces
    - Revert "ipv6: add mtu lock check in __ip6_rt_update_pmtu"
    - tcp: fix error recovery in tcp_zerocopy_receive()
    - tcp: fix SO_RCVLOWAT hangs with fat skbs
    - virtio_net: fix lockdep warning on 32 bit
    - dpaa2-eth: prevent array underflow in update_cls_rule()
    - hinic: fix a bug of ndo_stop
    - net: dsa: loop: Add module soft dependency
    - net: ipv4: really enforce backoff for redirects
    - netprio_cgroup: Fix unlimited memory leak of v2 cgroups
    - net: tcp: fix rx timestamp behavior for tcp_recvmsg
    - nfp: abm: fix error return code in nfp_abm_vnic_alloc()
    - r8169: re-establish support for RTL8401 chip version
    - umh: fix memory leak on execve failure
    - net: broadcom: Select BROADCOM_PHY for BCMGENET
    - dmaengine: xilinx_d...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem-osp1 - 5.0.0-1059.64

---------------
linux-oem-osp1 (5.0.0-1059.64) bionic; urgency=medium

  [ Ubuntu: 5.0.0-52.56 ]

  * CVE-2020-0543
    - SAUCE: x86/cpu: Add a steppings field to struct x86_cpu_id
    - SAUCE: x86/cpu: Add 'table' argument to cpu_matches()
    - SAUCE: x86/speculation: Add Special Register Buffer Data Sampling (SRBDS)
      mitigation
    - SAUCE: x86/speculation: Add SRBDS vulnerability and mitigation documentation
    - SAUCE: x86/speculation: Add Ivy Bridge to affected list

linux-oem-osp1 (5.0.0-1054.59) bionic; urgency=medium

  * bionic/linux-oem-osp1: 5.0.0-1054.59 -proposed tracker (LP: #1881221)

  * Speed up the process of s3 resume (LP: #1876844)
    - PCI/PM: Adjust pcie_wait_for_link_delay() for caller delay
    - PCI/PM: Assume ports without DLL Link Active train links in 100 ms

linux-oem-osp1 (5.0.0-1053.58) bionic; urgency=medium

  * bionic/linux-oem-osp1: 5.0.0-1053.58 -proposed tracker (LP: #1878822)

  * rtl8723bu wifi issue after being turned off (LP: #1878296)
    - rtl8xxxu: Improve TX performance of RTL8723BU on rtl8xxxu driver
    - rtl8xxxu: add bluetooth co-existence support for single antenna
    - rtl8xxxu: remove set but not used variable 'rate_mask'
    - rtl8xxxu: Remove set but not used variable 'vif', 'dev', 'len'

  * Fix Pericom USB controller OHCI/EHCI PME# defect (LP: #1879321)
    - serial: 8250_pci: Move Pericom IDs to pci_ids.h
    - PCI: Avoid Pericom USB controller OHCI/EHCI PME# defect

  * Don't register platform::micmute if the related tokens don't exist
    (LP: #1877275)
    - SAUCE: platform/x86: dell-laptop: don't register platform::micmute if the
      related tokens don't exist

  [ Ubuntu: 5.0.0-49.53 ]

  * disco/linux: 5.0.0-49.53 -proposed tracker (LP: #1878826)
  * Disco update: upstream stable patchset 2020-05-14 (LP: #1878681)
    - remoteproc: Fix wrong rvring index computation
    - mtd: cfi: fix deadloop in cfi_cmdset_0002.c do_write_buffer
    - binder: take read mode of mmap_sem in binder_alloc_free_page()
    - usb: dwc3: gadget: Do link recovery for SS and SSP
    - usb: gadget: udc: bdc: Remove unnecessary NULL checks in bdc_req_complete
    - iio:ad7797: Use correct attribute_group
    - ASoC: q6dsp6: q6afe-dai: add missing channels to MI2S DAIs
    - ASoC: tas571x: disable regulators on failed probe
    - ASoC: wm8960: Fix wrong clock after suspend & resume
    - nfsd: memory corruption in nfsd4_lock()
    - i2c: altera: use proper variable to hold errno
    - rxrpc: Fix DATA Tx to disable nofrag for UDP on AF_INET6 socket
    - net/cxgb4: Check the return from t4_query_params properly
    - xfs: acquire superblock freeze protection on eofblocks scans
    - svcrdma: Fix trace point use-after-free race
    - svcrdma: Fix leak of svc_rdma_recv_ctxt objects
    - PCI: Avoid ASMedia XHCI USB PME# from D0 defect
    - PCI: Move Apex Edge TPU class quirk to fix BAR assignment
    - ARM: dts: bcm283x: Disable dsi0 node
    - cpumap: Avoid warning when CONFIG_DEBUG_PER_CPU_MAPS is enabled
    - net/mlx5: Fix failing fw tracer allocation on s390
    - perf/core: fix parent pid/tid in task exit events
    - bpf, x86_3...

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-oem-5.6 - 5.6.0-1020.20

---------------
linux-oem-5.6 (5.6.0-1020.20) focal; urgency=medium

  * focal/linux-oem-5.6: 5.6.0-1020.20 -proposed tracker (LP: #1886753)

  * Realtek [10ec:c82f] Subsystem [17aa:c02f] Wifi adapter not found
    (LP: #1886247)
    - SAUCE: rtw88: 8822ce: add support for device ID 0xc82f

  * [WD19TB] external DP failed with DRM error message (LP: #1886165)
    - drm/i915/tgl: Update TC DP vswing table
    - drm/i915/tgl: Implement WA_16011163337
    - SAUCE: drm/i915/bios: add intel_bios_hdmi_level_shift()
    - drm/i915/tgl: Add HBR and HBR2+ voltage swing table
    - drm/i915/dc3co: Avoid full modeset when EXITLINE needs to be changed
    - drm/i915/tgl+: Use the correct DP_TP_* register instances in MST encoders
    - drm/i915/tgl+: Fix TBT DPLL fractional divider for 38.4MHz ref clock

  * ubuntu_aufs_smoke_test failed on Focal OEM 5.6 (LP: #1879308)
    - SAUCE: fs: Enable aufs

 -- Timo Aaltonen <email address hidden> Wed, 08 Jul 2020 11:44:53 +0300