diff options
Diffstat (limited to 'fs/sysfs/file.c')
| -rw-r--r-- | fs/sysfs/file.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index d0deed3e60b..69bacf1db59 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -416,6 +416,7 @@ int sysfs_add_file(struct sysfs_dirent *dir_sd, const struct attribute *attr, int type) { umode_t mode = (attr->mode & S_IALLUGO) | S_IFREG; + struct sysfs_addrm_cxt acxt; struct sysfs_dirent *sd; sd = sysfs_new_dirent(attr->name, mode, type); @@ -423,20 +424,18 @@ int sysfs_add_file(struct sysfs_dirent *dir_sd, const struct attribute *attr, return -ENOMEM; sd->s_elem.attr.attr = (void *)attr; - mutex_lock(&sysfs_mutex); + sysfs_addrm_start(&acxt, dir_sd); if (!sysfs_find_dirent(dir_sd, attr->name)) { - sysfs_attach_dirent(sd, dir_sd, NULL); - sd = NULL; + sysfs_add_one(&acxt, sd); + sysfs_link_sibling(sd); } - mutex_unlock(&sysfs_mutex); + if (sysfs_addrm_finish(&acxt)) + return 0; - if (sd) { - sysfs_put(sd); - return -EEXIST; - } - return 0; + sysfs_put(sd); + return -EEXIST; } |