drivers/mtd/devices/docg3.c: avoid world-writable sysfs files.

In line with practice for module parameters, we're adding a build-time
check that sysfs files aren't world-writable.

Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2014-05-14 10:33:47 +09:30
parent 7a6fed15f8
commit 993bcc62ce

View file

@ -1608,8 +1608,8 @@ static ssize_t dps1_insert_key(struct device *dev,
#define FLOOR_SYSFS(id) { \ #define FLOOR_SYSFS(id) { \
__ATTR(f##id##_dps0_is_keylocked, S_IRUGO, dps0_is_key_locked, NULL), \ __ATTR(f##id##_dps0_is_keylocked, S_IRUGO, dps0_is_key_locked, NULL), \
__ATTR(f##id##_dps1_is_keylocked, S_IRUGO, dps1_is_key_locked, NULL), \ __ATTR(f##id##_dps1_is_keylocked, S_IRUGO, dps1_is_key_locked, NULL), \
__ATTR(f##id##_dps0_protection_key, S_IWUGO, NULL, dps0_insert_key), \ __ATTR(f##id##_dps0_protection_key, S_IWUSR|S_IWGRP, NULL, dps0_insert_key), \
__ATTR(f##id##_dps1_protection_key, S_IWUGO, NULL, dps1_insert_key), \ __ATTR(f##id##_dps1_protection_key, S_IWUSR|S_IWGRP, NULL, dps1_insert_key), \
} }
static struct device_attribute doc_sys_attrs[DOC_MAX_NBFLOORS][4] = { static struct device_attribute doc_sys_attrs[DOC_MAX_NBFLOORS][4] = {