From 9047b435a0b43952f5d1f7eb15a9b63a36efc7f2 Mon Sep 17 00:00:00 2001 From: Russell King - ARM Linux Date: Tue, 11 Jan 2011 16:35:56 +0000 Subject: [PATCH] mmc: mmci: don't read command response when invalid Don't read the command response from the registers when either the command timed out (because there was no response from the card) or the checksum on the response was invalid. Signed-off-by: Russell King Signed-off-by: Chris Ball --- drivers/mmc/host/mmci.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 2de12fe155da..4b8dcd5b2a01 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -342,15 +342,15 @@ mmci_cmd_irq(struct mmci_host *host, struct mmc_command *cmd, host->cmd = NULL; - cmd->resp[0] = readl(base + MMCIRESPONSE0); - cmd->resp[1] = readl(base + MMCIRESPONSE1); - cmd->resp[2] = readl(base + MMCIRESPONSE2); - cmd->resp[3] = readl(base + MMCIRESPONSE3); - if (status & MCI_CMDTIMEOUT) { cmd->error = -ETIMEDOUT; } else if (status & MCI_CMDCRCFAIL && cmd->flags & MMC_RSP_CRC) { cmd->error = -EILSEQ; + } else { + cmd->resp[0] = readl(base + MMCIRESPONSE0); + cmd->resp[1] = readl(base + MMCIRESPONSE1); + cmd->resp[2] = readl(base + MMCIRESPONSE2); + cmd->resp[3] = readl(base + MMCIRESPONSE3); } if (!cmd->data || cmd->error) {