diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-ioctl.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index e172a91e88dc..16244a7b193c 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -771,8 +771,10 @@ static int check_name(const char *name) return -EINVAL; } - if (strcmp(name, DM_CONTROL_NODE) == 0) { - DMERR("device name cannot be \"%s\"", DM_CONTROL_NODE); + if (strcmp(name, DM_CONTROL_NODE) == 0 || + strcmp(name, ".") == 0 || + strcmp(name, "..") == 0) { + DMERR("device name cannot be \"%s\", \".\", or \"..\"", DM_CONTROL_NODE); return -EINVAL; } |