diff options
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/qcom/cmd-db.c | 43 |
1 files changed, 8 insertions, 35 deletions
diff --git a/drivers/soc/qcom/cmd-db.c b/drivers/soc/qcom/cmd-db.c index 5c9cc6824891..c701b3b010f1 100644 --- a/drivers/soc/qcom/cmd-db.c +++ b/drivers/soc/qcom/cmd-db.c @@ -192,56 +192,29 @@ EXPORT_SYMBOL(cmd_db_read_addr); /** * cmd_db_read_aux_data() - Query command db for aux data. * - * @id: Resource to retrieve AUX Data on. - * @data: Data buffer to copy returned aux data to. Returns size on NULL - * @len: Caller provides size of data buffer passed in. + * @id: Resource to retrieve AUX Data on + * @len: size of data buffer returned * - * Return: size of data on success, errno otherwise + * Return: pointer to data on success, error pointer otherwise */ -int cmd_db_read_aux_data(const char *id, u8 *data, size_t len) +const void *cmd_db_read_aux_data(const char *id, size_t *len) { int ret; const struct entry_header *ent; const struct rsc_hdr *rsc_hdr; - u16 ent_len; - - if (!data) - return -EINVAL; ret = cmd_db_get_header(id, &ent, &rsc_hdr); if (ret) - return ret; - - ent_len = le16_to_cpu(ent->len); - if (len < ent_len) - return -EINVAL; + return ERR_PTR(ret); - len = min_t(u16, ent_len, len); - memcpy(data, rsc_offset(rsc_hdr, ent), len); + if (len) + *len = le16_to_cpu(ent->len); - return len; + return rsc_offset(rsc_hdr, ent); } EXPORT_SYMBOL(cmd_db_read_aux_data); /** - * cmd_db_read_aux_data_len - Get the length of the auxiliary data stored in DB. - * - * @id: Resource to retrieve AUX Data. - * - * Return: size on success, 0 on error - */ -size_t cmd_db_read_aux_data_len(const char *id) -{ - int ret; - const struct entry_header *ent; - - ret = cmd_db_get_header(id, &ent, NULL); - - return ret < 0 ? 0 : le16_to_cpu(ent->len); -} -EXPORT_SYMBOL(cmd_db_read_aux_data_len); - -/** * cmd_db_read_slave_id - Get the slave ID for a given resource address * * @id: Resource id to query the DB for version |