Hello David Henningsson,

The patch 33f4acd3b214: "ALSA: hda - Enable mic mute hotkey and LEDs for an HP machine" from Jan 7, 2015, leads to the following static checker warning:

sound/pci/hda/patch_realtek.c:3551 alc280_fixup_hp_gpio2_mic_hotkey() error: don't call input_free_device() after input_unregister_device()

sound/pci/hda/patch_realtek.c 3545 switch (action) { 3546 case HDA_FIXUP_ACT_PROBE: 3547 spec->init_amp = ALC_INIT_DEFAULT; 3548 break; 3549 case HDA_FIXUP_ACT_FREE: 3550 input_unregister_device(spec->kb_dev); 3551 input_free_device(spec->kb_dev);

I think this is a double free.

3552 spec->kb_dev = NULL; 3553 } 3554 #endif 3555 }

regards, dan carpenter