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sdhci: be more cautious about block count register

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The block count register shouldn't be trusted for single block transfers,
so avoid using it completely when calculating transferred bytes.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Pierre Ossman
2007-08-12 13:13:24 +02:00
parent be760a9de8
commit 2b06197340
1 changed files with 2 additions and 2 deletions
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4
drivers/mmc/host/sdhci.c
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@@ -477,8 +477,8 @@ static void sdhci_finish_data(struct sdhci_host *host)
/* /*
* Controller doesn't count down when in single block mode. * Controller doesn't count down when in single block mode.
*/ */
if ((data->blocks == 1) && (data->error == MMC_ERR_NONE)) if (data->blocks == 1)
blocks = 0; blocks = (data->error == MMC_ERR_NONE) ? 0 : 1;
else else
blocks = readw(host->ioaddr + SDHCI_BLOCK_COUNT); blocks = readw(host->ioaddr + SDHCI_BLOCK_COUNT);
data->bytes_xfered = data->blksz * (data->blocks - blocks); data->bytes_xfered = data->blksz * (data->blocks - blocks);