diff options
Diffstat (limited to 'fs/sysfs')
-rw-r--r-- | fs/sysfs/file.c | 3 | ||||
-rw-r--r-- | fs/sysfs/group.c | 10 | ||||
-rw-r--r-- | fs/sysfs/mount.c | 7 |
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); |