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| author | Ulf Hansson <ulf.hansson@linaro.org> | 2014-10-20 13:37:24 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2014-11-10 12:40:42 +0100 |
| commit | 076ec38a58584dc85c837bd52b4ec3d9cd02b393 (patch) | |
| tree | 478d6ba32a6bf1142a49c315fdf24459fb0386cf | |
| parent | 148bcab28f51c80f13e5ad678fe840e8a34af46f (diff) | |
| download | linux-076ec38a58584dc85c837bd52b4ec3d9cd02b393.tar.gz linux-076ec38a58584dc85c837bd52b4ec3d9cd02b393.tar.bz2 linux-076ec38a58584dc85c837bd52b4ec3d9cd02b393.zip | |
mmc: core: Fetch and decode EXT_CSD from mmc_read_ext_csd()
As a step in cleaning up code around reading/decoding EXT_CSD, convert
the current mmc_read_ext_csd(), to handle both fetching the EXT_CSD
and decoding its data.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/core/mmc.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 7c257c93ecd7..13f8e3672606 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -388,7 +388,7 @@ static void mmc_manage_gp_partitions(struct mmc_card *card, u8 *ext_csd) /* * Decode extended CSD. */ -static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd) +static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd) { int err = 0, idx; unsigned int part_size; @@ -637,6 +637,20 @@ out: return err; } +static int mmc_read_ext_csd(struct mmc_card *card) +{ + u8 *ext_csd = NULL; + int err; + + err = mmc_get_ext_csd(card, &ext_csd); + if (err) + return err; + + err = mmc_decode_ext_csd(card, ext_csd); + kfree(ext_csd); + return err; +} + static int mmc_compare_ext_csds(struct mmc_card *card, unsigned bus_width) { u8 *bw_ext_csd; @@ -1259,7 +1273,6 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, int err; u32 cid[4]; u32 rocr; - u8 *ext_csd = NULL; BUG_ON(!host); WARN_ON(!host->claimed); @@ -1368,14 +1381,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, } if (!oldcard) { - /* - * Fetch and process extended CSD. - */ - - err = mmc_get_ext_csd(card, &ext_csd); - if (err) - goto free_card; - err = mmc_read_ext_csd(card, ext_csd); + /* Read extended CSD. */ + err = mmc_read_ext_csd(card); if (err) goto free_card; @@ -1552,15 +1559,12 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, if (!oldcard) host->card = card; - kfree(ext_csd); return 0; free_card: if (!oldcard) mmc_remove_card(card); err: - kfree(ext_csd); - return err; } |