While calling mmc_cache_ctrl() a host is not claimed. This patch
adds the mmc_try_claim_host() for quick response in suspend.
Signed-off-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx>
---
drivers/mmc/core/core.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 481b090..703ff11 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2314,7 +2314,13 @@ int mmc_suspend_host(struct mmc_host *host)
cancel_delayed_work(&host->disable);
cancel_delayed_work(&host->detect);
mmc_flush_scheduled_work();
- err = mmc_cache_ctrl(host, 0);
+ if (mmc_try_claim_host(host)) {
+ err = mmc_cache_ctrl(host, 0);
+ mmc_do_release_host(host);
+ } else {
+ err = -EBUSY;
+ }
+
if (err)
goto out;
--
1.7.0.4
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