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i2c: slave-eeprom: Constify 'struct bin_attribute'

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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>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
This commit is contained in:
Thomas Weißschuh 2024-12-15 14:21:39 +01:00 • committed by Wolfram Sang
parent 3cfe39b3a8
commit 7fd9d28d1a
1 changed files with 4 additions and 4 deletions
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8
drivers/i2c/i2c-slave-eeprom.c
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@ -91,7 +91,7 @@ static int i2c_slave_eeprom_slave_cb(struct i2c_client *client,
}
static ssize_t i2c_slave_eeprom_bin_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t off, size_t count)
const struct bin_attribute *attr, char *buf, loff_t off, size_t count)
{
struct eeprom_data *eeprom;
unsigned long flags;
@ -106,7 +106,7 @@ static ssize_t i2c_slave_eeprom_bin_read(struct file *filp, struct kobject *kobj
}
static ssize_t i2c_slave_eeprom_bin_write(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr, char *buf, loff_t off, size_t count)
const struct bin_attribute *attr, char *buf, loff_t off, size_t count)
{
struct eeprom_data *eeprom;
unsigned long flags;
@ -165,8 +165,8 @@ static int i2c_slave_eeprom_probe(struct i2c_client *client)
sysfs_bin_attr_init(&eeprom->bin);
eeprom->bin.attr.name = "slave-eeprom";
eeprom->bin.attr.mode = S_IRUSR | S_IWUSR;
eeprom->bin.read = i2c_slave_eeprom_bin_read;
eeprom->bin.write = i2c_slave_eeprom_bin_write;
eeprom->bin.read_new = i2c_slave_eeprom_bin_read;
eeprom->bin.write_new = i2c_slave_eeprom_bin_write;
eeprom->bin.size = size;
ret = sysfs_create_bin_file(&client->dev.kobj, &eeprom->bin);