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-rw-r--r--fs/sysfs/file.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 335288b9be0f..4013d7905e84 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -437,8 +437,8 @@ int sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode)
437{ 437{
438 struct dentry *dir = kobj->dentry; 438 struct dentry *dir = kobj->dentry;
439 struct dentry *victim; 439 struct dentry *victim;
440 struct sysfs_dirent *sd; 440 struct inode * inode;
441 umode_t umode = (mode & S_IALLUGO) | S_IFREG; 441 struct iattr newattrs;
442 int res = -ENOENT; 442 int res = -ENOENT;
443 443
444 down(&dir->d_inode->i_sem); 444 down(&dir->d_inode->i_sem);
@@ -446,13 +446,15 @@ int sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode)
446 if (!IS_ERR(victim)) { 446 if (!IS_ERR(victim)) {
447 if (victim->d_inode && 447 if (victim->d_inode &&
448 (victim->d_parent->d_inode == dir->d_inode)) { 448 (victim->d_parent->d_inode == dir->d_inode)) {
449 sd = victim->d_fsdata; 449 inode = victim->d_inode;
450 attr->mode = mode; 450 down(&inode->i_sem);
451 sd->s_mode = umode; 451 newattrs.ia_mode = (mode & S_IALLUGO) |
452 victim->d_inode->i_mode = umode; 452 (inode->i_mode & ~S_IALLUGO);
453 dput(victim); 453 newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
454 res = 0; 454 res = notify_change(victim, &newattrs);
455 up(&inode->i_sem);
455 } 456 }
457 dput(victim);
456 } 458 }
457 up(&dir->d_inode->i_sem); 459 up(&dir->d_inode->i_sem);
458 460