zorro: Constify 'struct bin_attribute'

The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory.  Make use of that to protect them against
accidental or malicious modifications.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/20241216-sysfs-const-bin_attr-zorro-v1-1-220a38d49507@weissschuh.net
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

diff --git a/drivers/zorro/zorro-sysfs.c b/drivers/zorro/zorro-sysfs.c
index 3d34dba9bb2dd488ffe509792940e51336c1852e..10aedcd21363442b2048ad4b0bebdbfd8c8ad30e 100644 (file)
--- a/drivers/zorro/zorro-sysfs.c
+++ b/drivers/zorro/zorro-sysfs.c
@@ -81,7 +81,7 @@ static struct attribute *zorro_device_attrs[] = {
 };
 
 static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
-                                struct bin_attribute *bin_attr,
+                                const struct bin_attribute *bin_attr,
                                 char *buf, loff_t off, size_t count)
 {
        struct zorro_dev *z = to_zorro_dev(kobj_to_dev(kobj));
@@ -98,23 +98,23 @@ static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
        return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
 }
 
-static struct bin_attribute zorro_config_attr = {
+static const struct bin_attribute zorro_config_attr = {
        .attr = {
                .name = "config",
                .mode = S_IRUGO,
        },
        .size = sizeof(struct ConfigDev),
-       .read = zorro_read_config,
+       .read_new = zorro_read_config,
 };
 
-static struct bin_attribute *zorro_device_bin_attrs[] = {
+static const struct bin_attribute *const zorro_device_bin_attrs[] = {
        &zorro_config_attr,
        NULL
 };
 
 static const struct attribute_group zorro_device_attr_group = {
        .attrs          = zorro_device_attrs,
-       .bin_attrs      = zorro_device_bin_attrs,
+       .bin_attrs_new  = zorro_device_bin_attrs,
 };
 
 const struct attribute_group *zorro_device_attribute_groups[] = {