On Tue, Jul 01, 2014 at 05:00:07PM +0900, Satoru Takeuchi wrote:
> --- a/fs/btrfs/sysfs.c
> +++ b/fs/btrfs/sysfs.c
> @@ -363,7 +363,8 @@ static ssize_t btrfs_label_show(struct kobject *kobj,
> struct kobj_attribute *a, char *buf)
> {
> struct btrfs_fs_info *fs_info = to_fs_info(kobj);
> - return snprintf(buf, PAGE_SIZE, "%s\n", fs_info->super_copy->label);
> + char *label = fs_info->super_copy->label;
> + return snprintf(buf, PAGE_SIZE, label[0] ? "%s\n" : "%s", label);
I'd prefer "" instead of the "%s" branch, but does not matter that much,
Reviewed-by: David Sterba <dsterba@xxxxxxx>
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