misc: eeprom/idt_89hpesx: 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>
Link: https://lore.kernel.org/r/20241221-sysfs-const-bin_attr-misc-drivers-v2-7-ba5e79fe8771@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/eeprom/idt_89hpesx.c b/drivers/misc/eeprom/idt_89hpesx.c
index 43421fe37d338874ff1c2949497c64ebf0143106..1fc632ebf22f560088084519e5ad8e8b37958368 100644 (file)
--- a/drivers/misc/eeprom/idt_89hpesx.c
+++ b/drivers/misc/eeprom/idt_89hpesx.c
@@ -847,7 +847,7 @@ err_mutex_unlock:
  * @count:     Number of bytes to write
  */
 static ssize_t eeprom_write(struct file *filp, struct kobject *kobj,
-                           struct bin_attribute *attr,
+                           const struct bin_attribute *attr,
                            char *buf, loff_t off, size_t count)
 {
        struct idt_89hpesx_dev *pdev;
@@ -871,7 +871,7 @@ static ssize_t eeprom_write(struct file *filp, struct kobject *kobj,
  * @count:     Number of bytes to write
  */
 static ssize_t eeprom_read(struct file *filp, struct kobject *kobj,
-                          struct bin_attribute *attr,
+                          const struct bin_attribute *attr,
                           char *buf, loff_t off, size_t count)
 {
        struct idt_89hpesx_dev *pdev;
@@ -1017,7 +1017,7 @@ static ssize_t idt_dbgfs_csr_read(struct file *filep, char __user *ubuf,
  * NOTE Size will be changed in compliance with OF node. EEPROM attribute will
  * be read-only as well if the corresponding flag is specified in OF node.
  */
-static BIN_ATTR_RW(eeprom, EEPROM_DEF_SIZE);
+static const BIN_ATTR_RW(eeprom, EEPROM_DEF_SIZE);
 
 /*
  * csr_dbgfs_ops - CSR debugfs-node read/write operations