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-rw-r--r--fs/sysfs/file.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index b94f936..35e7d08 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -609,7 +609,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
struct sysfs_open_file *of;
- bool has_read, has_write, has_mmap;
+ bool has_read, has_write;
int error = -EACCES;
/* need attr_sd for attr and ops, its parent for kobj */
@@ -621,7 +621,6 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
has_read = battr->read || battr->mmap;
has_write = battr->write || battr->mmap;
- has_mmap = battr->mmap;
} else {
const struct sysfs_ops *ops = sysfs_file_ops(attr_sd);
@@ -633,7 +632,6 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
has_read = ops->show;
has_write = ops->store;
- has_mmap = false;
}
/* check perms and supported operations */
@@ -661,9 +659,9 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
* open file has a separate mutex, it's okay as long as those don't
* happen on the same file. At this point, we can't easily give
* each file a separate locking class. Let's differentiate on
- * whether the file has mmap or not for now.
+ * whether the file is bin or not for now.
*/
- if (has_mmap)
+ if (sysfs_is_bin(attr_sd))
mutex_init(&of->mutex);
else
mutex_init(&of->mutex);
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