acpi_panasonic: acquire serial lock before calling hkey_sound_mute in shutdown

acpi_panasonic_shutdown() calls hkey_sound_mute() without holding
the ACPI serial lock. Every other call site holds
`ACPI_SERIAL_BEGIN(panasonic)` before calling it, as the locking
model is caller-owned.

This seems to affect the whole Panasonic Toughtbook lineup btw.

Reviewed by:	ngie
Differential Revision:	https://reviews.freebsd.org/D56718

This commit is contained in:

Abdelkader Boudih

2026-05-05 12:49:01 -07:00

committed by

Enji Cooper

parent fd386e76fa

commit 7619d14d08

1 changed files with 2 additions and 0 deletions

									
										sys/dev/acpi_support/acpi_panasonic.c
									
		+2
		
												View File
												
				@@ -233,7 +233,9 @@ acpi_panasonic_shutdown(device_t dev)

					/* Mute the main audio during reboot to prevent static burst to speaker. */

					sc = device_get_softc(dev);

					mute = 1;

					ACPI_SERIAL_BEGIN(panasonic);

					hkey_sound_mute(sc->handle, HKEY_SET, &mute);

					ACPI_SERIAL_END(panasonic);

					return (0);

				}