diff options
| -rw-r--r-- | fs/cifs/cifsfs.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 0f6a54f14ef..bb39afcc6f3 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -129,24 +129,19 @@ cifs_read_super(struct super_block *sb, void *data, cifs_sb->bdi.ra_pages = default_backing_dev_info.ra_pages; #ifdef CONFIG_CIFS_DFS_UPCALL - /* copy mount params to sb for use in submounts */ - /* BB: should we move this after the mount so we - * do not have to do the copy on failed mounts? - * BB: May be it is better to do simple copy before - * complex operation (mount), and in case of fail - * just exit instead of doing mount and attempting - * undo it if this copy fails?*/ + /* + * Copy mount params to sb for use in submounts. Better to do + * the copy here and deal with the error before cleanup gets + * complicated post-mount. + */ if (data) { - int len = strlen(data); - cifs_sb->mountdata = kzalloc(len + 1, GFP_KERNEL); + cifs_sb->mountdata = kstrndup(data, PAGE_SIZE, GFP_KERNEL); if (cifs_sb->mountdata == NULL) { bdi_destroy(&cifs_sb->bdi); kfree(sb->s_fs_info); sb->s_fs_info = NULL; return -ENOMEM; } - strncpy(cifs_sb->mountdata, data, len + 1); - cifs_sb->mountdata[len] = '\0'; } #endif |