The acpi_dev_get_first_match_name() is missing put_device() call and thus keeping reference counting unbalanced. In order to fix the issue introduce a new helper to convert existing users one-by-one to a better API. Since v3: - convert all existing users and drop old API (Mika) - add Hans' tag Cc: MyungJoo Ham <myungjoo.ham@xxxxxxxxxxx> Cc: Chanwoo Choi <cw00.choi@xxxxxxxxxxx> Cc: Chen-Yu Tsai <wens@xxxxxxxx> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx> Cc: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx> Andy Shevchenko (10): ACPI / utils: Introduce acpi_dev_get_first_match_dev() helper extcon: axp288: Convert to use acpi_dev_get_first_match_dev() gpio: merrifield: Convert to use acpi_dev_get_first_match_dev() ASoC: Intel: bytcht_da7213: Convert to use acpi_dev_get_first_match_dev() ASoC: Intel: bytcht_es8316: Convert to use acpi_dev_get_first_match_dev() ASoC: Intel: bytcr_rt5640: Convert to use acpi_dev_get_first_match_dev() ASoC: Intel: bytcr_rt5651: Convert to use acpi_dev_get_first_match_dev() ASoC: Intel: cht_bsw_rt5645: Convert to use acpi_dev_get_first_match_dev() ASoC: Intel: cht_bsw_rt5672: Convert to use acpi_dev_get_first_match_dev() ACPI / utils: Remove deprecated function since no user left drivers/acpi/utils.c | 16 ++++++++++------ drivers/extcon/extcon-axp288.c | 9 +++++---- drivers/gpio/gpio-merrifield.c | 18 ++++++++++++++---- include/acpi/acpi_bus.h | 4 ++-- include/linux/acpi.h | 4 ++-- sound/soc/intel/boards/bytcht_da7213.c | 9 +++++---- sound/soc/intel/boards/bytcht_es8316.c | 9 +++++---- sound/soc/intel/boards/bytcr_rt5640.c | 10 +++++----- sound/soc/intel/boards/bytcr_rt5651.c | 14 ++++++++------ sound/soc/intel/boards/cht_bsw_rt5645.c | 9 +++++---- sound/soc/intel/boards/cht_bsw_rt5672.c | 9 +++++---- 11 files changed, 66 insertions(+), 45 deletions(-) -- 2.20.1