luck/tmp_suning_uos_patched
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mmc: check error bits before command completion

Browse Source 
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>
This commit is contained in:
Pierre Ossman 2007-07-25 23:15:27 +02:00
parent b8c1c5da15
commit 43b58b36b7
1 changed files with 9 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/mmc/host/sdhci.c
View File

@ -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)