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| author | Linus Walleij <linus.walleij@linaro.org> | 2013-10-16 10:05:53 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-10-16 10:05:53 +0200 |
| commit | 263c43a4479ecce52c0fdc84b4620e146263d549 (patch) | |
| tree | b29ad7d94892be7a40524400481f71a1c075a167 /drivers/md/bcache/sysfs.c | |
| parent | 873ee9ed2c020b59e22a5082f73fc2960ec959bf (diff) | |
| parent | d0e639c9e06d44e713170031fe05fb60ebe680af (diff) | |
Merge tag 'v3.12-rc4' into devel
Linux 3.12-rc4
Diffstat (limited to 'drivers/md/bcache/sysfs.c')
| -rw-r--r-- | drivers/md/bcache/sysfs.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c index 4fe6ab2fbe2e..924dcfdae111 100644 --- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -223,8 +223,13 @@ STORE(__cached_dev) } if (attr == &sysfs_label) { - /* note: endlines are preserved */ - memcpy(dc->sb.label, buf, SB_LABEL_SIZE); + if (size > SB_LABEL_SIZE) + return -EINVAL; + memcpy(dc->sb.label, buf, size); + if (size < SB_LABEL_SIZE) + dc->sb.label[size] = '\0'; + if (size && dc->sb.label[size - 1] == '\n') + dc->sb.label[size - 1] = '\0'; bch_write_bdev_super(dc, NULL); if (dc->disk.c) { memcpy(dc->disk.c->uuids[dc->disk.id].label, |