On 1/22/2013 5:48 PM, Jaehoon Chung wrote:
When card removed, then didn't complete the previously data.
(It didn't wakeup any interrupt.)
If card is removed, then we can assume to complete the previously data.
And wakeup the interrupt for wait_event of data.
This problem is produced when sd-card is removed.(Sd-card is running some operation)
Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <Kyungmin.park@xxxxxxxxxxx>
---
drivers/mmc/core/core.c | 31 ++++++++++++++++++++-----------
1 files changed, 20 insertions(+), 11 deletions(-)
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 8b3a122..bc1d627 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -515,17 +515,26 @@ struct mmc_async_req *mmc_start_req(struct mmc_host *host,
mmc_pre_req(host, areq->mrq, !host->areq);
if (host->areq) {
- err = mmc_wait_for_data_req_done(host, host->areq->mrq,
- areq);
- if (err == MMC_BLK_NEW_REQUEST) {
- if (error)
- *error = err;
- /*
- * The previous request was not completed,
- * nothing to return
- */
- return NULL;
- }
+ err = mmc_wait_for_data_req_done(host, host->areq->mrq,
+ areq);
+ if (err == MMC_BLK_NEW_REQUEST) {
+ if (error)
+ *error = err;
+ /*
+ * The previous request was not completed,
+ * nothing to return
+ */
+ return NULL;
+ } else if (err == MMC_BLK_NOMEDIUM && areq) {
+ struct mmc_context_info *ctnx = &host->context_info;
+ /*
+ * If crad is removed,
+ * then we didn't wait for data completed.
+ * Assume that data-recieve done.
+ */
+ ctnx->is_done_rcv = true;
+ wake_up_interruptible(&ctnx->wait);
Can you please explain more on what exactly we are trying to do here
(may be you can list down the call flow)? I am not sure if i understood
this correctly. But why would you need to wakeup the thread here? We are
here because thread is already woken up. mmc_wait_for_data_req_done()
would return only if either the new request is received or the currently
running request on controller is completed.
Regards,
Subhash
+ }
/*
* Check BKOPS urgency for each R1 response
*/
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