From 2b061973404802fb87db93175b856ee0dfbe38e4 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Sun, 12 Aug 2007 13:13:24 +0200 Subject: [PATCH] sdhci: be more cautious about block count register 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 --- drivers/mmc/host/sdhci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index f2bc87ac24..7181e86786 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -477,8 +477,8 @@ static void sdhci_finish_data(struct sdhci_host *host) /* * Controller doesn't count down when in single block mode. */ - if ((data->blocks == 1) && (data->error == MMC_ERR_NONE)) - blocks = 0; + if (data->blocks == 1) + blocks = (data->error == MMC_ERR_NONE) ? 0 : 1; else blocks = readw(host->ioaddr + SDHCI_BLOCK_COUNT); data->bytes_xfered = data->blksz * (data->blocks - blocks); -- 2.39.5