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-rw-r--r--fs/sysfs/file.c3
-rw-r--r--fs/sysfs/group.c10
-rw-r--r--fs/sysfs/mount.c7
3 files changed, 12 insertions, 8 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 28cc1acd543..e9ef59b3abb 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -47,12 +47,13 @@ static int sysfs_kf_seq_show(struct seq_file *sf, void *v)
ssize_t count;
char *buf;
- /* acquire buffer and ensure that it's >= PAGE_SIZE */
+ /* acquire buffer and ensure that it's >= PAGE_SIZE and clear */
count = seq_get_buf(sf, &buf);
if (count < PAGE_SIZE) {
seq_commit(sf, -1);
return 0;
}
+ memset(buf, 0, PAGE_SIZE);
/*
* Invoke show(). Control may reach here via seq file lseek even
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index aa0406895b5..7d2a860ba78 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -18,7 +18,7 @@
#include "sysfs.h"
-static void remove_files(struct kernfs_node *parent, struct kobject *kobj,
+static void remove_files(struct kernfs_node *parent,
const struct attribute_group *grp)
{
struct attribute *const *attr;
@@ -29,7 +29,7 @@ static void remove_files(struct kernfs_node *parent, struct kobject *kobj,
kernfs_remove_by_name(parent, (*attr)->name);
if (grp->bin_attrs)
for (bin_attr = grp->bin_attrs; *bin_attr; bin_attr++)
- sysfs_remove_bin_file(kobj, *bin_attr);
+ kernfs_remove_by_name(parent, (*bin_attr)->attr.name);
}
static int create_files(struct kernfs_node *parent, struct kobject *kobj,
@@ -62,7 +62,7 @@ static int create_files(struct kernfs_node *parent, struct kobject *kobj,
break;
}
if (error) {
- remove_files(parent, kobj, grp);
+ remove_files(parent, grp);
goto exit;
}
}
@@ -79,7 +79,7 @@ static int create_files(struct kernfs_node *parent, struct kobject *kobj,
break;
}
if (error)
- remove_files(parent, kobj, grp);
+ remove_files(parent, grp);
}
exit:
return error;
@@ -224,7 +224,7 @@ void sysfs_remove_group(struct kobject *kobj,
kernfs_get(kn);
}
- remove_files(kn, kobj, grp);
+ remove_files(kn, grp);
if (grp->name)
kernfs_remove(kn);
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index a66ad6196f5..8a49486bf30 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -13,6 +13,7 @@
#define DEBUG
#include <linux/fs.h>
+#include <linux/magic.h>
#include <linux/mount.h>
#include <linux/init.h>
#include <linux/user_namespace.h>
@@ -38,7 +39,8 @@ static struct dentry *sysfs_mount(struct file_system_type *fs_type,
}
ns = kobj_ns_grab_current(KOBJ_NS_TYPE_NET);
- root = kernfs_mount_ns(fs_type, flags, sysfs_root, &new_sb, ns);
+ root = kernfs_mount_ns(fs_type, flags, sysfs_root,
+ SYSFS_MAGIC, &new_sb, ns);
if (IS_ERR(root) || !new_sb)
kobj_ns_drop(KOBJ_NS_TYPE_NET, ns);
return root;
@@ -63,7 +65,8 @@ int __init sysfs_init(void)
{
int err;
- sysfs_root = kernfs_create_root(NULL, 0, NULL);
+ sysfs_root = kernfs_create_root(NULL, KERNFS_ROOT_EXTRA_OPEN_PERM_CHECK,
+ NULL);
if (IS_ERR(sysfs_root))
return PTR_ERR(sysfs_root);