6.6-stable review patch. If anyone has any objections, please let me know.

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From: Kaushlendra Kumar kaushlendra.kumar@intel.com

commit 20594cd104abaaabb676c7a2915b150ae5ff093d upstream.

Make acpi_button_add() call input_free_device() when input_register_device() fails as required according to the documentation of the latter.

Fixes: 0d51157dfaac ("ACPI: button: Eliminate the driver notify callback") Signed-off-by: Kaushlendra Kumar kaushlendra.kumar@intel.com Cc: 6.5+ stable@vger.kernel.org # 6.5+ [ rjw: Subject and changelog rewrite, Fixes: tag ] Link: https://patch.msgid.link/20251006084706.971855-1-kaushlendra.kumar@intel.com Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/acpi/button.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -603,8 +603,10 @@ static int acpi_button_add(struct acpi_d

input_set_drvdata(input, device); error = input_register_device(input); - if (error) + if (error) { + input_free_device(input); goto err_remove_fs; + }

switch (device->device_type) { case ACPI_BUS_TYPE_POWER_BUTTON: