diff options
Diffstat (limited to 'drivers/mmc/core/sd.c')
| -rw-r--r-- | drivers/mmc/core/sd.c | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index 0123936241b0..73c762a28dfe 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -223,8 +223,7 @@ static int mmc_decode_scr(struct mmc_card *card) static int mmc_read_ssr(struct mmc_card *card) { unsigned int au, es, et, eo; - int err, i; - u32 *ssr; + int i; if (!(card->csd.cmdclass & CCC_APP_SPEC)) { pr_warn("%s: card lacks mandatory SD Status function\n", @@ -232,33 +231,27 @@ static int mmc_read_ssr(struct mmc_card *card) return 0; } - ssr = kmalloc(64, GFP_KERNEL); - if (!ssr) - return -ENOMEM; - - err = mmc_app_sd_status(card, ssr); - if (err) { + if (mmc_app_sd_status(card, card->raw_ssr)) { pr_warn("%s: problem reading SD Status register\n", mmc_hostname(card->host)); - err = 0; - goto out; + return 0; } for (i = 0; i < 16; i++) - ssr[i] = be32_to_cpu(ssr[i]); + card->raw_ssr[i] = be32_to_cpu(card->raw_ssr[i]); /* * UNSTUFF_BITS only works with four u32s so we have to offset the * bitfield positions accordingly. */ - au = UNSTUFF_BITS(ssr, 428 - 384, 4); + au = UNSTUFF_BITS(card->raw_ssr, 428 - 384, 4); if (au) { if (au <= 9 || card->scr.sda_spec3) { card->ssr.au = sd_au_size[au]; - es = UNSTUFF_BITS(ssr, 408 - 384, 16); - et = UNSTUFF_BITS(ssr, 402 - 384, 6); + es = UNSTUFF_BITS(card->raw_ssr, 408 - 384, 16); + et = UNSTUFF_BITS(card->raw_ssr, 402 - 384, 6); if (es && et) { - eo = UNSTUFF_BITS(ssr, 400 - 384, 2); + eo = UNSTUFF_BITS(card->raw_ssr, 400 - 384, 2); card->ssr.erase_timeout = (et * 1000) / es; card->ssr.erase_offset = eo * 1000; } @@ -267,9 +260,8 @@ static int mmc_read_ssr(struct mmc_card *card) mmc_hostname(card->host)); } } -out: - kfree(ssr); - return err; + + return 0; } /* @@ -666,6 +658,14 @@ MMC_DEV_ATTR(cid, "%08x%08x%08x%08x\n", card->raw_cid[0], card->raw_cid[1], MMC_DEV_ATTR(csd, "%08x%08x%08x%08x\n", card->raw_csd[0], card->raw_csd[1], card->raw_csd[2], card->raw_csd[3]); MMC_DEV_ATTR(scr, "%08x%08x\n", card->raw_scr[0], card->raw_scr[1]); +MMC_DEV_ATTR(ssr, + "%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x\n", + card->raw_ssr[0], card->raw_ssr[1], card->raw_ssr[2], + card->raw_ssr[3], card->raw_ssr[4], card->raw_ssr[5], + card->raw_ssr[6], card->raw_ssr[7], card->raw_ssr[8], + card->raw_ssr[9], card->raw_ssr[10], card->raw_ssr[11], + card->raw_ssr[12], card->raw_ssr[13], card->raw_ssr[14], + card->raw_ssr[15]); MMC_DEV_ATTR(date, "%02d/%04d\n", card->cid.month, card->cid.year); MMC_DEV_ATTR(erase_size, "%u\n", card->erase_size << 9); MMC_DEV_ATTR(preferred_erase_size, "%u\n", card->pref_erase << 9); @@ -698,6 +698,7 @@ static struct attribute *sd_std_attrs[] = { &dev_attr_cid.attr, &dev_attr_csd.attr, &dev_attr_scr.attr, + &dev_attr_ssr.attr, &dev_attr_date.attr, &dev_attr_erase_size.attr, &dev_attr_preferred_erase_size.attr, |