diff options
Diffstat (limited to 'block/sed-opal.c')
| -rw-r--r-- | block/sed-opal.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/block/sed-opal.c b/block/sed-opal.c index 9ed51d0c6b1d..36842bfa572e 100644 --- a/block/sed-opal.c +++ b/block/sed-opal.c @@ -871,6 +871,9 @@ static int response_parse(const u8 *buf, size_t length, static size_t response_get_string(const struct parsed_resp *resp, int n, const char **store) { + u8 skip; + const struct opal_resp_tok *token; + *store = NULL; if (!resp) { pr_debug("Response is NULL\n"); @@ -883,13 +886,30 @@ static size_t response_get_string(const struct parsed_resp *resp, int n, return 0; } - if (resp->toks[n].type != OPAL_DTA_TOKENID_BYTESTRING) { + token = &resp->toks[n]; + if (token->type != OPAL_DTA_TOKENID_BYTESTRING) { pr_debug("Token is not a byte string!\n"); return 0; } - *store = resp->toks[n].pos + 1; - return resp->toks[n].len - 1; + switch (token->width) { + case OPAL_WIDTH_TINY: + case OPAL_WIDTH_SHORT: + skip = 1; + break; + case OPAL_WIDTH_MEDIUM: + skip = 2; + break; + case OPAL_WIDTH_LONG: + skip = 4; + break; + default: + pr_debug("Token has invalid width!\n"); + return 0; + } + + *store = token->pos + skip; + return token->len - skip; } static u64 response_get_u64(const struct parsed_resp *resp, int n) |