firmware: dmi: Mark bin_attributes as __ro_after_init

The attributes are only modified during the __init phase.
Protect them against accidental or intentional modifications afterwards.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20250125-sysfs-const-bin_attr-dmi-v2-1-ece1895936f4@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index fde0656481cc9577b05b781b703a8071e8d3fc4e..70d39adf50dcaaa7c99b48fe8e9045af5ea24d00 100644 (file)
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -761,8 +761,8 @@ static void __init dmi_scan_machine(void)
        pr_info("DMI not present or invalid.\n");
 }
 
-static BIN_ATTR_SIMPLE_ADMIN_RO(smbios_entry_point);
-static BIN_ATTR_SIMPLE_ADMIN_RO(DMI);
+static __ro_after_init BIN_ATTR_SIMPLE_ADMIN_RO(smbios_entry_point);
+static __ro_after_init BIN_ATTR_SIMPLE_ADMIN_RO(DMI);
 
 static int __init dmi_init(void)
 {