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| author | Russell King - ARM Linux <linux@arm.linux.org.uk> | 2011-01-11 16:35:56 +0000 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-01-25 21:53:46 -0500 |
| commit | 9047b435a0b43952f5d1f7eb15a9b63a36efc7f2 (patch) | |
| tree | 065f85eb0a24659a3b79059c20e092afaaa3be08 /drivers/mmc | |
| parent | 021cb59ae3869fb18ebc9fceb959f379c5ca835c (diff) | |
| download | linux-9047b435a0b43952f5d1f7eb15a9b63a36efc7f2.tar.gz linux-9047b435a0b43952f5d1f7eb15a9b63a36efc7f2.tar.bz2 linux-9047b435a0b43952f5d1f7eb15a9b63a36efc7f2.zip | |
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 <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 10 |
1 files 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) { |