[PATCH 1/2] mmc: core: fix permanent sleep of mmcqd during card removal

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This patch is derived from 'mmc: fix async request mechanism ...'.
According as async transfer, a request is handled with twice mmc_start_req.
When the card is removed, the request is actually not issued in the first
mmc_start_req [__mmc_start_data_req]. And then mmc_wait_for_data_req_done
will come in the next mmc_start_req. But there is no event for completions.
wake_up_interruptible is needed in __mmc_start_data_req for the case of
removed card.

Signed-off-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx>
---
 drivers/mmc/core/core.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 8b3a122..997b257 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -350,6 +350,7 @@ static int __mmc_start_data_req(struct mmc_host *host, struct mmc_request *mrq)
 	mrq->host = host;
 	if (mmc_card_removed(host->card)) {
 		mrq->cmd->error = -ENOMEDIUM;
+		mmc_wait_data_done(mrq);
 		return -ENOMEDIUM;
 	}
 	mmc_start_request(host, mrq);
-- 
1.7.0.4


--
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


[Index of Archives]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux