[patch 45/49] mmc: increase SD write timeout for crappy cards

[Greg KH]

2.6.27-stable review patch.  If anyone has any objections, please let us know.

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

From: Pierre Ossman <drzeus@xxxxxxxxx>

commit 493890e75d98810a3470b4aae23be628ee5e9667 upstream.

It seems that some cards are slightly out of spec and occasionally
will not be able to complete a write in the alloted 250 ms [1].
Incease the timeout slightly to allow even these cards to function
properly.

[1] http://lkml.org/lkml/2008/9/23/390

Signed-off-by: Pierre Ossman <drzeus@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/mmc/core/core.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -280,7 +280,11 @@ void mmc_set_data_timeout(struct mmc_dat
 			(card->host->ios.clock / 1000);
 
 		if (data->flags & MMC_DATA_WRITE)
-			limit_us = 250000;
+			/*
+			 * The limit is really 250 ms, but that is
+			 * insufficient for some crappy cards.
+			 */
+			limit_us = 300000;
 		else
 			limit_us = 100000;
 

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