[3.13.y.z extended stable] Patch "libata: widen Crucial M550 blacklist matching" has been added to staging queue

Kamal Mostafa kamal at canonical.com
Tue Sep 30 21:29:27 UTC 2014

This is a note to let you know that I have just added a patch titled

    libata: widen Crucial M550 blacklist matching

to the linux-3.13.y-queue branch of the 3.13.y.z extended stable tree 
which can be found at:


This patch is scheduled to be released in version

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y.z tree, see



>From 4b8fd3dd03d833e24258f290c6352c9f0379e1bd Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj at kernel.org>
Date: Mon, 18 Aug 2014 17:40:09 -0400
Subject: libata: widen Crucial M550 blacklist matching

commit 2a13772a144d2956a7fedd18685921d0a9b8b783 upstream.

Crucial M550 may cause data corruption on queued trims and is
blacklisted.  The pattern used for it fails to match 1TB one as the
capacity section will be four chars instead of three.  Widen the

Signed-off-by: Tejun Heo <tj at kernel.org>
Reported-by: Charles Reiss <woggling at gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=81071
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
 drivers/ata/libata-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index f761603..538574f 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4227,7 +4227,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "Micron_M500*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM, },
 	{ "Crucial_CT???M500SSD*",	NULL,	ATA_HORKAGE_NO_NCQ_TRIM, },
 	{ "Micron_M550*",		NULL,	ATA_HORKAGE_NO_NCQ_TRIM, },
-	{ "Crucial_CT???M550SSD*",	NULL,	ATA_HORKAGE_NO_NCQ_TRIM, },
+	{ "Crucial_CT*M550SSD*",	NULL,	ATA_HORKAGE_NO_NCQ_TRIM, },

 	 * Some WD SATA-I drives spin up and down erratically when the link

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