From 43b58b36b7e6554b8a96be6b9f63542c583c06e5 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Wed, 25 Jul 2007 23:15:27 +0200 Subject: mmc: check error bits before command completion Some controllers signal "command complete" even on failures (which they are allowed to do according to the spec). Make sure we check the error bits first so we don't get any false positives. Signed-off-by: Pierre Ossman --- drivers/mmc/host/sdhci.c | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) (limited to 'drivers/mmc') diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 4a24db028d8..56de4c48ec8 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -922,20 +922,17 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask) return; } - if (intmask & SDHCI_INT_RESPONSE) - sdhci_finish_command(host); - else { - if (intmask & SDHCI_INT_TIMEOUT) - host->cmd->error = MMC_ERR_TIMEOUT; - else if (intmask & SDHCI_INT_CRC) - host->cmd->error = MMC_ERR_BADCRC; - else if (intmask & (SDHCI_INT_END_BIT | SDHCI_INT_INDEX)) - host->cmd->error = MMC_ERR_FAILED; - else - host->cmd->error = MMC_ERR_INVALID; - + if (intmask & SDHCI_INT_TIMEOUT) + host->cmd->error = MMC_ERR_TIMEOUT; + else if (intmask & SDHCI_INT_CRC) + host->cmd->error = MMC_ERR_BADCRC; + else if (intmask & (SDHCI_INT_END_BIT | SDHCI_INT_INDEX)) + host->cmd->error = MMC_ERR_FAILED; + + if (host->cmd->error != MMC_ERR_NONE) tasklet_schedule(&host->finish_tasklet); - } + else if (intmask & SDHCI_INT_RESPONSE) + sdhci_finish_command(host); } static void sdhci_data_irq(struct sdhci_host *host, u32 intmask) -- cgit v1.2.3