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@xxxxxxxxxxxxxx> --- drivers/acpi/sysfs.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 687524b5008592c58c021f9c7981b76eaa58038f..a48ebbf768f91ab354cd276f1b4dda2c063ef9b5 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -319,7 +319,7 @@ struct acpi_data_attr { }; static ssize_t acpi_table_show(struct file *filp, struct kobject *kobj, - struct bin_attribute *bin_attr, char *buf, + const struct bin_attribute *bin_attr, char *buf, loff_t offset, size_t count) { struct acpi_table_attr *table_attr = @@ -372,7 +372,7 @@ static int acpi_table_attr_init(struct kobject *tables_obj, } table_attr->attr.size = table_header->length; - table_attr->attr.read = acpi_table_show; + table_attr->attr.read_new = acpi_table_show; table_attr->attr.attr.name = table_attr->filename; table_attr->attr.attr.mode = 0400; @@ -412,7 +412,7 @@ acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context) } static ssize_t acpi_data_show(struct file *filp, struct kobject *kobj, - struct bin_attribute *bin_attr, char *buf, + const struct bin_attribute *bin_attr, char *buf, loff_t offset, size_t count) { struct acpi_data_attr *data_attr; @@ -495,7 +495,7 @@ static int acpi_table_data_init(struct acpi_table_header *th) if (!data_attr) return -ENOMEM; sysfs_attr_init(&data_attr->attr.attr); - data_attr->attr.read = acpi_data_show; + data_attr->attr.read_new = acpi_data_show; data_attr->attr.attr.mode = 0400; return acpi_data_objs[i].fn(th, data_attr); } -- 2.47.1