summaryrefslogtreecommitdiffstats
path: root/fs/sysfs/file.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/sysfs/file.c')
-rw-r--r--fs/sysfs/file.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 298303b5a71..9cfe53e1e00 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -154,7 +154,7 @@ sysfs_read_file(struct file *file, char __user *buf, size_t count, loff_t *ppos)
down(&buffer->sem);
if (buffer->needs_read_fill) {
- if ((retval = fill_read_buffer(file->f_dentry,buffer)))
+ if ((retval = fill_read_buffer(file->f_path.dentry,buffer)))
goto out;
}
pr_debug("%s: count = %zd, ppos = %lld, buf = %s\n",
@@ -190,6 +190,9 @@ fill_write_buffer(struct sysfs_buffer * buffer, const char __user * buf, size_t
count = PAGE_SIZE - 1;
error = copy_from_user(buffer->page,buf,count);
buffer->needs_read_fill = 1;
+ /* if buf is assumed to contain a string, terminate it by \0,
+ so e.g. sscanf() can scan the string easily */
+ buffer->page[count] = 0;
return error ? -EFAULT : count;
}
@@ -242,7 +245,7 @@ sysfs_write_file(struct file *file, const char __user *buf, size_t count, loff_t
down(&buffer->sem);
len = fill_write_buffer(buffer, buf, count);
if (len > 0)
- len = flush_write_buffer(file->f_dentry, buffer, len);
+ len = flush_write_buffer(file->f_path.dentry, buffer, len);
if (len > 0)
*ppos += len;
up(&buffer->sem);
@@ -251,8 +254,8 @@ sysfs_write_file(struct file *file, const char __user *buf, size_t count, loff_t
static int check_perm(struct inode * inode, struct file * file)
{
- struct kobject *kobj = sysfs_get_kobject(file->f_dentry->d_parent);
- struct attribute * attr = to_attr(file->f_dentry);
+ struct kobject *kobj = sysfs_get_kobject(file->f_path.dentry->d_parent);
+ struct attribute * attr = to_attr(file->f_path.dentry);
struct sysfs_buffer * buffer;
struct sysfs_ops * ops = NULL;
int error = 0;
@@ -334,8 +337,8 @@ static int sysfs_open_file(struct inode * inode, struct file * filp)
static int sysfs_release(struct inode * inode, struct file * filp)
{
- struct kobject * kobj = to_kobj(filp->f_dentry->d_parent);
- struct attribute * attr = to_attr(filp->f_dentry);
+ struct kobject * kobj = to_kobj(filp->f_path.dentry->d_parent);
+ struct attribute * attr = to_attr(filp->f_path.dentry);
struct module * owner = attr->owner;
struct sysfs_buffer * buffer = filp->private_data;
@@ -369,8 +372,8 @@ static int sysfs_release(struct inode * inode, struct file * filp)
static unsigned int sysfs_poll(struct file *filp, poll_table *wait)
{
struct sysfs_buffer * buffer = filp->private_data;
- struct kobject * kobj = to_kobj(filp->f_dentry->d_parent);
- struct sysfs_dirent * sd = filp->f_dentry->d_fsdata;
+ struct kobject * kobj = to_kobj(filp->f_path.dentry->d_parent);
+ struct sysfs_dirent * sd = filp->f_path.dentry->d_fsdata;
int res = 0;
poll_wait(filp, &kobj->poll, wait);