diff options
Diffstat (limited to 'drivers/mmc/host/mmci.c')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index be730c0a035..d0eb0a2abf4 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -16,6 +16,7 @@ #include <linux/delay.h> #include <linux/err.h> #include <linux/highmem.h> +#include <linux/log2.h> #include <linux/mmc/host.h> #include <linux/amba/bus.h> #include <linux/clk.h> @@ -154,11 +155,11 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data, } if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN|MCI_RXOVERRUN)) { if (status & MCI_DATACRCFAIL) - data->error = MMC_ERR_BADCRC; + data->error = -EILSEQ; else if (status & MCI_DATATIMEOUT) - data->error = MMC_ERR_TIMEOUT; + data->error = -ETIMEDOUT; else if (status & (MCI_TXUNDERRUN|MCI_RXOVERRUN)) - data->error = MMC_ERR_FIFO; + data->error = -EIO; status |= MCI_DATAEND; /* @@ -193,12 +194,12 @@ mmci_cmd_irq(struct mmci_host *host, struct mmc_command *cmd, cmd->resp[3] = readl(base + MMCIRESPONSE3); if (status & MCI_CMDTIMEOUT) { - cmd->error = MMC_ERR_TIMEOUT; + cmd->error = -ETIMEDOUT; } else if (status & MCI_CMDCRCFAIL && cmd->flags & MMC_RSP_CRC) { - cmd->error = MMC_ERR_BADCRC; + cmd->error = -EILSEQ; } - if (!cmd->data || cmd->error != MMC_ERR_NONE) { + if (!cmd->data || cmd->error) { if (host->data) mmci_stop_data(host); mmci_request_end(host, cmd->mrq); @@ -391,6 +392,14 @@ static void mmci_request(struct mmc_host *mmc, struct mmc_request *mrq) WARN_ON(host->mrq != NULL); + if (mrq->data && !is_power_of_2(mrq->data->blksz)) { + printk(KERN_ERR "%s: Unsupported block size (%d bytes)\n", + mmc_hostname(mmc), mrq->data->blksz); + mrq->cmd->error = -EINVAL; + mmc_request_done(mmc, mrq); + return; + } + spin_lock_irq(&host->lock); host->mrq = mrq; |