linux-kernel - [39/90] mmc: sdhci: Fix tuning timer incorrect setting when suspending host

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Date:	Mon, 23 Jan 2012 15:39:25 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Philip Rakity <prakity@...vell.com>,
	Aaron Lu <aaron.lu@....com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Chris Ball <cjb@...top.org>
Subject: [39/90] mmc: sdhci: Fix tuning timer incorrect setting when suspending host

3.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Aaron Lu <aaron.lu@....com>

commit c6ced0db08010ed75df221a2946c5228454b38d5 upstream.

When suspending host, the tuning timer shoule be deactivated.
And the HOST_NEEDS_TUNING flag should be set after tuning timer is
deactivated.

Signed-off-by: Philip Rakity <prakity@...vell.com>
Signed-off-by: Aaron Lu <aaron.lu@....com>
Acked-by: Adrian Hunter <adrian.hunter@...el.com>
Signed-off-by: Chris Ball <cjb@...top.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/mmc/host/sdhci.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2227,9 +2227,8 @@ int sdhci_suspend_host(struct sdhci_host
 	/* Disable tuning since we are suspending */
 	if (host->version >= SDHCI_SPEC_300 && host->tuning_count &&
 	    host->tuning_mode == SDHCI_TUNING_MODE_1) {
+		del_timer_sync(&host->tuning_timer);
 		host->flags &= ~SDHCI_NEEDS_RETUNING;
-		mod_timer(&host->tuning_timer, jiffies +
-			host->tuning_count * HZ);
 	}
 
 	ret = mmc_suspend_host(host->mmc);


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