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authorPierre Ossman <drzeus@drzeus.cx>2007-07-25 23:15:27 +0200
committerPierre Ossman <drzeus@drzeus.cx>2007-07-26 01:53:01 +0200
commit43b58b36b7e6554b8a96be6b9f63542c583c06e5 (patch)
tree5a8cdcfc2bb018a75c2d12d894d85e1835eed69a /drivers/mmc
parentb8c1c5da1520977cb55a358f20fc09567d40cad9 (diff)
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 <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci.c23
1 files changed, 10 insertions, 13 deletions
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)