diff options
| -rw-r--r-- | drivers/md/dm-ioctl.c | 41 |
1 files changed, 24 insertions, 17 deletions
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 99d38a6925a4..4c350914f4a0 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -128,6 +128,24 @@ static struct hash_cell *__get_uuid_cell(const char *str) return NULL; } +static struct hash_cell *__get_dev_cell(uint64_t dev) +{ + struct mapped_device *md; + struct hash_cell *hc; + + md = dm_get_md(huge_decode_dev(dev)); + if (!md) + return NULL; + + hc = dm_get_mdptr(md); + if (!hc) { + dm_put(md); + return NULL; + } + + return hc; +} + /*----------------------------------------------------------------- * Inserting, removing and renaming a device. *---------------------------------------------------------------*/ @@ -718,34 +736,23 @@ static int dev_create(struct dm_ioctl *param, size_t param_size) */ static struct hash_cell *__find_device_hash_cell(struct dm_ioctl *param) { - struct mapped_device *md; struct hash_cell *hc = NULL; if (*param->uuid) { hc = __get_uuid_cell(param->uuid); if (!hc) return NULL; - goto fill_params; - } - - if (*param->name) { + } else if (*param->name) { hc = __get_name_cell(param->name); if (!hc) return NULL; - goto fill_params; - } - - md = dm_get_md(huge_decode_dev(param->dev)); - if (!md) - return NULL; - - hc = dm_get_mdptr(md); - if (!hc) { - dm_put(md); + } else if (param->dev) { + hc = __get_dev_cell(param->dev); + if (!hc) + return NULL; + } else return NULL; - } -fill_params: /* * Sneakily write in both the name and the uuid * while we have the cell. |