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path: root/fs/sysfs/file.c
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Diffstat (limited to 'fs/sysfs/file.c')
-rw-r--r--fs/sysfs/file.c21
1 files changed, 5 insertions, 16 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index d673d9b5d33f..a84b734f7b29 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -241,7 +241,6 @@ sysfs_write_file(struct file *file, const char __user *buf, size_t count, loff_t
static int sysfs_open_file(struct inode *inode, struct file *file)
{
struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
- struct attribute *attr = attr_sd->s_elem.attr.attr;
struct kobject *kobj = attr_sd->s_parent->s_elem.dir.kobj;
struct sysfs_buffer * buffer;
struct sysfs_ops * ops = NULL;
@@ -251,11 +250,6 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
if (!sysfs_get_active_two(attr_sd))
return -ENODEV;
- /* Grab the module reference for this attribute */
- error = -ENODEV;
- if (!try_module_get(attr->owner))
- goto err_sput;
-
/* if the kobject has no ktype, then we assume that it is a subsystem
* itself, and use ops for it.
*/
@@ -272,7 +266,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
* or the subsystem have no operations.
*/
if (!ops)
- goto err_mput;
+ goto err_out;
/* File needs write support.
* The inode's perms must say it's ok,
@@ -280,7 +274,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
*/
if (file->f_mode & FMODE_WRITE) {
if (!(inode->i_mode & S_IWUGO) || !ops->store)
- goto err_mput;
+ goto err_out;
}
/* File needs read support.
@@ -289,7 +283,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
*/
if (file->f_mode & FMODE_READ) {
if (!(inode->i_mode & S_IRUGO) || !ops->show)
- goto err_mput;
+ goto err_out;
}
/* No error? Great, allocate a buffer for the file, and store it
@@ -298,7 +292,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
error = -ENOMEM;
buffer = kzalloc(sizeof(struct sysfs_buffer), GFP_KERNEL);
if (!buffer)
- goto err_mput;
+ goto err_out;
init_MUTEX(&buffer->sem);
buffer->needs_read_fill = 1;
@@ -310,9 +304,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
sysfs_get(attr_sd);
return 0;
- err_mput:
- module_put(attr->owner);
- err_sput:
+ err_out:
sysfs_put_active_two(attr_sd);
return error;
}
@@ -320,12 +312,9 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
static int sysfs_release(struct inode * inode, struct file * filp)
{
struct sysfs_dirent *attr_sd = filp->f_path.dentry->d_fsdata;
- struct attribute *attr = attr_sd->s_elem.attr.attr;
struct sysfs_buffer *buffer = filp->private_data;
sysfs_put(attr_sd);
- /* After this point, attr should not be accessed. */
- module_put(attr->owner);
if (buffer) {
if (buffer->page)