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mmc: core: Add claiming of hosts during mmc_cache_ctrl 

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@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Seungwon Jeon 2011-12-26 18:03:05 +09:00 committed by Chris Ball
parent d83b6e035f
commit 17e9ff559a
1 changed files with 7 additions and 1 deletions
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8
drivers/mmc/core/core.c
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@ -2355,7 +2355,13 @@ 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;