fixed a condition where device issues a status cmd to sdcard but no response
comes from sdcard. The sdhci irq fires and we hit a timeout case which calls
sdhci_finish_data(). sdhci_finish_data eventually attempt to reset controller
and issues stop cmd. However mmcdq is wait_for_completion(&mrq->completion)
in function mmc_wait_for_req_done which never occurs.
Signed-off-by: Neal Buckendahl <nealb001@xxxxxxxxx>
Signed-off-by: Narayanan Gopalakrishnan <narayan.1979@xxxxxxxxx>
Signed-off-by: Philip Rakity <prakity@xxxxxxxxxx>
---
drivers/mmc/host/sdhci.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 6785fb1..2a703f0 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -973,6 +973,10 @@ static void sdhci_finish_data(struct sdhci_host *host)
if (data->error) {
sdhci_reset(host, SDHCI_RESET_CMD);
sdhci_reset(host, SDHCI_RESET_DATA);
+ if (data->error == -ETIMEDOUT) {
+ host->mrq->cmd->error = -ETIMEDOUT;
+ tasklet_schedule(&host->finish_tasklet);
+ }
}
sdhci_send_command(host, data->stop);
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
