git: 0307db7744d4 - main - acpi_spmc: Fail probe if acpi_spmc device already attached

The branch main has been updated by obiwac:

URL: https://cgit.FreeBSD.org/src/commit/?id=0307db7744d4cfe0d610ebece226dd20fdcc4ed5

commit 0307db7744d4cfe0d610ebece226dd20fdcc4ed5
Author:     Aymeric Wibo <obiwac@FreeBSD.org>
AuthorDate: 2026-04-01 11:54:57 +0000
Commit:     Aymeric Wibo <obiwac@FreeBSD.org>
CommitDate: 2026-04-01 11:54:58 +0000

    acpi_spmc: Fail probe if acpi_spmc device already attached
    
    We cannot have more than one SPMC device.
    
    Reviewed by:    olce
    Approved by:    olce
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D56062
---
 sys/dev/acpica/acpi_spmc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sys/dev/acpica/acpi_spmc.c b/sys/dev/acpica/acpi_spmc.c
index 206d3a843f53..0c2a5d9e96a9 100644
--- a/sys/dev/acpica/acpi_spmc.c
+++ b/sys/dev/acpica/acpi_spmc.c
@@ -190,6 +190,11 @@ acpi_spmc_probe(device_t dev)
 	if (ACPI_ID_PROBE(device_get_parent(dev), dev, spmc_ids, &name) > 0)
 		return (ENXIO);
 
+	if (device_get_unit(dev) > 0) {
+		device_printf(dev, "shouldn't have more than one SPMC");
+		return (ENXIO);
+	}
+
 	handle = acpi_get_handle(dev);
 	if (handle == NULL)
 		return (ENXIO);