From: Al Cooper <[email protected]> This function will try to get a password for the card and use the password to unlock it. It will leave the card state flag set appropriately.
refs #SWLINUX-2545 Signed-off-by: Al Cooper <[email protected]> --- drivers/mmc/core/core.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 510927f..7dd6a33 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2776,6 +2776,34 @@ struct key_type mmc_key_type = { .match = mmc_key_match, .destroy = mmc_key_destroy, }; + +int mmc_unlock_card(struct mmc_card *card) +{ + int stat; + struct mmc_password password; + + mmc_card_set_locked(card); + stat = mmc_get_password(card, &password); + if (stat) { + pr_warn("%s: Cannot find matching key\n", + mmc_hostname(card->host)); + return stat; + } + stat = mmc_lock_unlock(card, &password, MMC_LOCK_MODE_UNLOCK); + if (stat) + pr_warn("%s: Wrong password\n", mmc_hostname(card->host)); + else + mmc_card_clear_locked(card); + return stat; +} + +#else /* CONFIG_MMC_LOCK */ + +int mmc_unlock_card(struct mmc_card *card) +{ + return -ENOKEY; +} + #endif /* CONFIG_MMC_LOCK */ static int __init mmc_init(void) -- 1.8.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
