This is a note to let you know that I've just added the patch titled
md: raid0: fix error return from create_stripe_zones.
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
md-raid0-fix-error-return-from-create_stripe_zones.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 58ebb34c49fcfcaa029e4b1c1453d92583900f9a Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@xxxxxxx>
Date: Thu, 21 Feb 2013 15:36:38 +1100
Subject: md: raid0: fix error return from create_stripe_zones.
From: NeilBrown <neilb@xxxxxxx>
commit 58ebb34c49fcfcaa029e4b1c1453d92583900f9a upstream.
Create_stripe_zones returns an error slightly differently to
raid0_run and to raid0_takeover_*.
The error returned used by the second was wrong and an error would
result in mddev->private being set to NULL and sooner or later a
crash.
So never return NULL, return ERR_PTR(err), not NULL from
create_stripe_zones.
This bug has been present since 2.6.35 so the fix is suitable
for any kernel since then.
Signed-off-by: NeilBrown <neilb@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/raid0.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -280,7 +280,7 @@ abort:
kfree(conf->strip_zone);
kfree(conf->devlist);
kfree(conf);
- *private_conf = NULL;
+ *private_conf = ERR_PTR(err);
return err;
}
Patches currently in stable-queue which might be from neilb@xxxxxxx are
queue-3.4/md-fix-two-bugs-when-attempting-to-resize-raid0-array.patch
queue-3.4/md-raid0-fix-error-return-from-create_stripe_zones.patch
queue-3.4/md-protect-against-crash-upon-fsync-on-ro-array.patch
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